125278436 has 24 divisors (see below), whose sum is σ = 225086400. Its totient is φ = 60977952.

The previous prime is 125278429. The next prime is 125278477. The reversal of 125278436 is 634872521.

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 125278436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58985 + ... + 61071.

It is an arithmetic number, because the mean of its divisors is an integer number (9378600).

Almost surely, 2^125278436 is an apocalyptic number.

It is an amenable number.

125278436 is a deficient number, since it is larger than the sum of its proper divisors (99807964).

125278436 is a wasteful number, since it uses less digits than its factorization.

125278436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483 (or 2481 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 125278436 is about 11192.7849974883. The cubic root of 125278436 is about 500.3709726905.

The spelling of 125278436 in words is "one hundred twenty-five million, two hundred seventy-eight thousand, four hundred thirty-six".