125646402 has 32 divisors (see below), whose sum is σ = 287539200. Its totient is φ = 35855568.

The previous prime is 125646377. The next prime is 125646407. The reversal of 125646402 is 204646521.

It is a self number, because there is not a number n which added to its sum of digits gives 125646402.

It is not an unprimeable number, because it can be changed into a prime (125646407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52549 + ... + 54887.

It is an arithmetic number, because the mean of its divisors is an integer number (8985600).

Almost surely, 2^125646402 is an apocalyptic number.

125646402 is an abundant number, since it is smaller than the sum of its proper divisors (161892798).

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

125646402 is a wasteful number, since it uses less digits than its factorization.

125646402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 125646402 is about 11209.2105877265. The cubic root of 125646402 is about 500.8603879493.

The spelling of 125646402 in words is "one hundred twenty-five million, six hundred forty-six thousand, four hundred two".