125402904 has 160 divisors (see below), whose sum is σ = 390036240. Its totient is φ = 37324800.

The previous prime is 125402891. The next prime is 125402917. The reversal of 125402904 is 409204521.

It is an interprime number because it is at equal distance from previous prime (125402891) and next prime (125402917).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 520224 + ... + 520464.

Almost surely, 2^125402904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125402904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195018120).

125402904 is an abundant number, since it is smaller than the sum of its proper divisors (264633336).

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

125402904 is a wasteful number, since it uses less digits than its factorization.

125402904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 125402904 is about 11198.3438061170. The cubic root of 125402904 is about 500.5366291855.

The spelling of 125402904 in words is "one hundred twenty-five million, four hundred two thousand, nine hundred four".