125437800 has 48 divisors (see below), whose sum is σ = 388859040. Its totient is φ = 33449920.

The previous prime is 125437799. The next prime is 125437813. The reversal of 125437800 is 8734521.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103932 + ... + 105131.

It is an arithmetic number, because the mean of its divisors is an integer number (8101230).

Almost surely, 2^125437800 is an apocalyptic number.

125437800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125437800 is an abundant number, since it is smaller than the sum of its proper divisors (263421240).

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

125437800 is a wasteful number, since it uses less digits than its factorization.

125437800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209082 (or 209073 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 125437800 is about 11199.9017852837. The cubic root of 125437800 is about 500.5830531671.

The spelling of 125437800 in words is "one hundred twenty-five million, four hundred thirty-seven thousand, eight hundred".