Search a number
125227001 is a prime number
BaseRepresentation
bin1110111011011…
…00111111111001
322201122012011002
413131230333321
5224024231001
620232014345
73050261204
oct735547771
9281565132
10125227001
1164761999
1235b313b5
131cc37123
14128ba93b
15aed946b
hex776cff9

125227001 has 2 divisors, whose sum is σ = 125227002. Its totient is φ = 125227000.

The previous prime is 125226989. The next prime is 125227007. The reversal of 125227001 is 100722521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114468601 + 10758400 = 10699^2 + 3280^2 .

It is an emirp because it is prime and its reverse (100722521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125227001 - 210 = 125225977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125227007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62613500 + 62613501.

It is an arithmetic number, because the mean of its divisors is an integer number (62613501).

Almost surely, 2125227001 is an apocalyptic number.

It is an amenable number.

125227001 is a deficient number, since it is larger than the sum of its proper divisors (1).

125227001 is an equidigital number, since it uses as much as digits as its factorization.

125227001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 125227001 is about 11190.4870760839. The cubic root of 125227001 is about 500.3024849688.

Adding to 125227001 its reverse (100722521), we get a palindrome (225949522).

The spelling of 125227001 in words is "one hundred twenty-five million, two hundred twenty-seven thousand, one".