Search a number
-
+
121314265 = 524262853
BaseRepresentation
bin1110011101100…
…01101111011001
322110021101212221
413032301233121
5222024024030
620012104041
73002103622
oct716615731
9273241787
10121314265
116252a226
1234765021
131c1971b7
141217ca49
15a9b4e7a
hex73b1bd9

121314265 has 4 divisors (see below), whose sum is σ = 145577124. Its totient is φ = 97051408.

The previous prime is 121314257. The next prime is 121314269. The reversal of 121314265 is 562413121.

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: 562413121 = 1327423823.

It can be written as a sum of positive squares in 2 ways, for example, as 18352656 + 102961609 = 4284^2 + 10147^2 .

It is a cyclic number.

It is not a de Polignac number, because 121314265 - 23 = 121314257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121314269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12131422 + ... + 12131431.

It is an arithmetic number, because the mean of its divisors is an integer number (36394281).

Almost surely, 2121314265 is an apocalyptic number.

It is an amenable number.

121314265 is a deficient number, since it is larger than the sum of its proper divisors (24262859).

121314265 is an equidigital number, since it uses as much as digits as its factorization.

121314265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24262858.

The product of its digits is 1440, while the sum is 25.

The square root of 121314265 is about 11014.2755095376. The cubic root of 121314265 is about 495.0365785981.

Adding to 121314265 its reverse (562413121), we get a palindrome (683727386).

The spelling of 121314265 in words is "one hundred twenty-one million, three hundred fourteen thousand, two hundred sixty-five".

Divisors: 1 5 24262853 121314265