125135312 has 10 divisors (see below), whose sum is σ = 242449698. Its totient is φ = 62567648.

The previous prime is 125135287. The next prime is 125135333. The reversal of 125135312 is 213531521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124456336 + 678976 = 11156^2 + 824^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3910463 + ... + 3910494.

Almost surely, 2^125135312 is an apocalyptic number.

It is an amenable number.

125135312 is a deficient number, since it is larger than the sum of its proper divisors (117314386).

125135312 is an equidigital number, since it uses as much as digits as its factorization.

125135312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820965 (or 7820959 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 125135312 is about 11186.3895873512. The cubic root of 125135312 is about 500.1803509393.

Adding to 125135312 its reverse (213531521), we get a palindrome (338666833).

It can be divided in two parts, 1251 and 35312, that added together give a palindrome (36563).

The spelling of 125135312 in words is "one hundred twenty-five million, one hundred thirty-five thousand, three hundred twelve".