125974890 has 24 divisors (see below), whose sum is σ = 327534948. Its totient is φ = 33593280.

The previous prime is 125974889. The next prime is 125974909. The reversal of 125974890 is 98479521.

125974890 is a `hidden beast` number, since 12 + 597 + 48 + 9 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 125686521 + 288369 = 11211^2 + 537^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 699771 + ... + 699950.

Almost surely, 2^125974890 is an apocalyptic number.

125974890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125974890 is an abundant number, since it is smaller than the sum of its proper divisors (201560058).

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

125974890 is a wasteful number, since it uses less digits than its factorization.

125974890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399734 (or 1399731 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 125974890 is about 11223.8536162942. The cubic root of 125974890 is about 501.2964886620.

The spelling of 125974890 in words is "one hundred twenty-five million, nine hundred seventy-four thousand, eight hundred ninety".