Search a number
-
+
127035145 = 525407029
BaseRepresentation
bin1111001001001…
…10011100001001
322212001001110101
413210212130021
5230010111040
620334445401
73101531566
oct744463411
9285031411
10127035145
1165787426
1236663861
132041b133
1412c2b86d
15b24509a
hex7926709

127035145 has 4 divisors (see below), whose sum is σ = 152442180. Its totient is φ = 101628112.

The previous prime is 127035143. The next prime is 127035151. The reversal of 127035145 is 541530721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541530721 = 5411000981.

It can be written as a sum of positive squares in 2 ways, for example, as 59351616 + 67683529 = 7704^2 + 8227^2 .

It is a cyclic number.

It is not a de Polignac number, because 127035145 - 21 = 127035143 is a prime.

It is a super-2 number, since 2×1270351452 = 32275856130342050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127035143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12703510 + ... + 12703519.

It is an arithmetic number, because the mean of its divisors is an integer number (38110545).

Almost surely, 2127035145 is an apocalyptic number.

It is an amenable number.

127035145 is a deficient number, since it is larger than the sum of its proper divisors (25407035).

127035145 is an equidigital number, since it uses as much as digits as its factorization.

127035145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25407034.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 127035145 is about 11270.9868689481. The cubic root of 127035145 is about 502.6989319861.

Adding to 127035145 its reverse (541530721), we get a palindrome (668565866).

The spelling of 127035145 in words is "one hundred twenty-seven million, thirty-five thousand, one hundred forty-five".

Divisors: 1 5 25407029 127035145