125129970 has 96 divisors (see below), whose sum is σ = 376451712. Its totient is φ = 28244736.

The previous prime is 125129941. The next prime is 125129987. The reversal of 125129970 is 79921521.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51094 + ... + 53486.

It is an arithmetic number, because the mean of its divisors is an integer number (3921372).

Almost surely, 2^125129970 is an apocalyptic number.

125129970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125129970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188225856).

125129970 is an abundant number, since it is smaller than the sum of its proper divisors (251321742).

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

125129970 is a wasteful number, since it uses less digits than its factorization.

125129970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 125129970 is about 11186.1508125002. The cubic root of 125129970 is about 500.1732333068.

The spelling of 125129970 in words is "one hundred twenty-five million, one hundred twenty-nine thousand, nine hundred seventy".