125929920 has 112 divisors (see below), whose sum is σ = 408480768. Its totient is φ = 32855040.

The previous prime is 125929889. The next prime is 125929939. The reversal of 125929920 is 29929521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43725 + ... + 46515.

Almost surely, 2^125929920 is an apocalyptic number.

125929920 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 125929920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204240384).

125929920 is an abundant number, since it is smaller than the sum of its proper divisors (282550848).

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

125929920 is a wasteful number, since it uses less digits than its factorization.

125929920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2848 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 125929920 is about 11221.8501148429. The cubic root of 125929920 is about 501.2368313072.

The spelling of 125929920 in words is "one hundred twenty-five million, nine hundred twenty-nine thousand, nine hundred twenty".