125079900 has 144 divisors (see below), whose sum is σ = 408723840. Its totient is φ = 29254400.

The previous prime is 125079893. The next prime is 125079901. The reversal of 125079900 is 9970521.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125079901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95047 + ... + 96353.

It is an arithmetic number, because the mean of its divisors is an integer number (2838360).

Almost surely, 2^125079900 is an apocalyptic number.

125079900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125079900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204361920).

125079900 is an abundant number, since it is smaller than the sum of its proper divisors (283643940).

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

125079900 is a wasteful number, since it uses less digits than its factorization.

125079900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 125079900 is about 11183.9125533062. The cubic root of 125079900 is about 500.1065106427.

The spelling of 125079900 in words is "one hundred twenty-five million, seventy-nine thousand, nine hundred".