125613012 has 48 divisors (see below), whose sum is σ = 343147392. Its totient is φ = 35013120.

The previous prime is 125612989. The next prime is 125613073. The reversal of 125613012 is 210316521.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 125613012.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14793 + ... + 21680.

It is an arithmetic number, because the mean of its divisors is an integer number (7148904).

Almost surely, 2^125613012 is an apocalyptic number.

125613012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125613012 is an abundant number, since it is smaller than the sum of its proper divisors (217534380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125613012 is a wasteful number, since it uses less digits than its factorization.

125613012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36528 (or 36526 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 125613012 is about 11207.7210886067. The cubic root of 125613012 is about 500.8160168419.

Adding to 125613012 its reverse (210316521), we get a palindrome (335929533).

The spelling of 125613012 in words is "one hundred twenty-five million, six hundred thirteen thousand, twelve".