125135237 has 2 divisors, whose sum is σ = 125135238. Its totient is φ = 125135236.

The previous prime is 125135233. The next prime is 125135243. The reversal of 125135237 is 732531521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123632161 + 1503076 = 11119^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 125135237 - 2² = 125135233 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125135233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62567618 + 62567619.

It is an arithmetic number, because the mean of its divisors is an integer number (62567619).

Almost surely, 2^125135237 is an apocalyptic number.

It is an amenable number.

125135237 is a deficient number, since it is larger than the sum of its proper divisors (1).

125135237 is an equidigital number, since it uses as much as digits as its factorization.

125135237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 125135237 is about 11186.3862350627. The cubic root of 125135237 is about 500.1802510113.

Adding to 125135237 its reverse (732531521), we get a palindrome (857666758).

The spelling of 125135237 in words is "one hundred twenty-five million, one hundred thirty-five thousand, two hundred thirty-seven".