125597406 has 16 divisors (see below), whose sum is σ = 274030848. Its totient is φ = 38059800.

The previous prime is 125597393. The next prime is 125597431. The reversal of 125597406 is 604795521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951430 + ... + 951561.

It is an arithmetic number, because the mean of its divisors is an integer number (17126928).

Almost surely, 2^125597406 is an apocalyptic number.

125597406 is an abundant number, since it is smaller than the sum of its proper divisors (148433442).

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

125597406 is a wasteful number, since it uses less digits than its factorization.

125597406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903007.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 125597406 is about 11207.0248505123. The cubic root of 125597406 is about 500.7952757357.

The spelling of 125597406 in words is "one hundred twenty-five million, five hundred ninety-seven thousand, four hundred six".