125972730 has 96 divisors (see below), whose sum is σ = 358210944. Its totient is φ = 30526848.

The previous prime is 125972711. The next prime is 125972731. The reversal of 125972730 is 37279521.

125972730 is a `hidden beast` number, since 12 + 597 + 27 + 30 = 666.

It is not an unprimeable number, because it can be changed into a prime (125972731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77587 + ... + 79193.

It is an arithmetic number, because the mean of its divisors is an integer number (3731364).

Almost surely, 2^125972730 is an apocalyptic number.

125972730 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 125972730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179105472).

125972730 is an abundant number, since it is smaller than the sum of its proper divisors (232238214).

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

125972730 is a wasteful number, since it uses less digits than its factorization.

125972730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 125972730 is about 11223.7573922461. The cubic root of 125972730 is about 501.2936235233.

The spelling of 125972730 in words is "one hundred twenty-five million, nine hundred seventy-two thousand, seven hundred thirty".