125398980 has 72 divisors (see below), whose sum is σ = 434720832. Its totient is φ = 28662336.

The previous prime is 125398963. The next prime is 125399003. The reversal of 125398980 is 89893521.

It is a happy number.

It is a hoax number, since the sum of its digits (45) 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 (45).

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 23 ways as a sum of consecutive naturals, for example, 48502 + ... + 51021.

Almost surely, 2^125398980 is an apocalyptic number.

125398980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125398980 is an abundant number, since it is smaller than the sum of its proper divisors (309321852).

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

125398980 is a wasteful number, since it uses less digits than its factorization.

125398980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99545 (or 99540 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 125398980 is about 11198.1686002667. The cubic root of 125398980 is about 500.5314083436.

The spelling of 125398980 in words is "one hundred twenty-five million, three hundred ninety-eight thousand, nine hundred eighty".