125491804 has 12 divisors (see below), whose sum is σ = 222888904. Its totient is φ = 61809264.

The previous prime is 125491777. The next prime is 125491829. The reversal of 125491804 is 408194521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125491804.

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 3 ways as a sum of consecutive naturals, for example, 233859 + ... + 234394.

Almost surely, 2^125491804 is an apocalyptic number.

It is an amenable number.

125491804 is a deficient number, since it is larger than the sum of its proper divisors (97397100).

125491804 is a wasteful number, since it uses less digits than its factorization.

125491804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468324 (or 468322 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 125491804 is about 11202.3124398492. The cubic root of 125491804 is about 500.6548805551.

The spelling of 125491804 in words is "one hundred twenty-five million, four hundred ninety-one thousand, eight hundred four".