125404900 has 18 divisors (see below), whose sum is σ = 272128850. Its totient is φ = 50161920.

The previous prime is 125404891. The next prime is 125404927. The reversal of 125404900 is 9404521.

It can be written as a sum of positive squares in 3 ways, for example, as 1572516 + 123832384 = 1254^2 + 11128^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626925 + ... + 627124.

Almost surely, 2^125404900 is an apocalyptic number.

125404900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125404900 is an abundant number, since it is smaller than the sum of its proper divisors (146723950).

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

125404900 is a wasteful number, since it uses less digits than its factorization.

125404900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254063 (or 1254056 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 125404900 is about 11198.4329260839. The cubic root of 125404900 is about 500.5392848014.

The spelling of 125404900 in words is "one hundred twenty-five million, four hundred four thousand, nine hundred".