125159820 has 48 divisors (see below), whose sum is σ = 352574208. Its totient is φ = 33173440.

The previous prime is 125159807. The next prime is 125159849. The reversal of 125159820 is 28951521.

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, 3775 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (7345296).

Almost surely, 2^125159820 is an apocalyptic number.

125159820 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 125159820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176287104).

125159820 is an abundant number, since it is smaller than the sum of its proper divisors (227414388).

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

125159820 is a wasteful number, since it uses less digits than its factorization.

125159820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12670 (or 12668 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 125159820 is about 11187.4849720569. The cubic root of 125159820 is about 500.2130025802.

The spelling of 125159820 in words is "one hundred twenty-five million, one hundred fifty-nine thousand, eight hundred twenty".