125846721 has 96 divisors (see below), whose sum is σ = 249150720. Its totient is φ = 59097600.

The previous prime is 125846717. The next prime is 125846759. The reversal of 125846721 is 127648521.

125846721 is a `hidden beast` number, since 1 + 2 + 584 + 6 + 72 + 1 = 666.

It is not a de Polignac number, because 125846721 - 2² = 125846717 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125846711) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 549435 + ... + 549663.

It is an arithmetic number, because the mean of its divisors is an integer number (2595320).

Almost surely, 2^125846721 is an apocalyptic number.

125846721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125846721 is a deficient number, since it is larger than the sum of its proper divisors (123303999).

125846721 is a wasteful number, since it uses less digits than its factorization.

125846721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 324 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 125846721 is about 11218.1424933008. The cubic root of 125846721 is about 501.1264217757.

The spelling of 125846721 in words is "one hundred twenty-five million, eight hundred forty-six thousand, seven hundred twenty-one".