125677021 has 8 divisors (see below), whose sum is σ = 127988640. Its totient is φ = 123371568.

The previous prime is 125676997. The next prime is 125677043. The reversal of 125677021 is 120776521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125677021 - 2¹⁷ = 125545949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125677051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64950 + ... + 66856.

It is an arithmetic number, because the mean of its divisors is an integer number (15998580).

Almost surely, 2^125677021 is an apocalyptic number.

It is an amenable number.

125677021 is a deficient number, since it is larger than the sum of its proper divisors (2311619).

125677021 is a wasteful number, since it uses less digits than its factorization.

125677021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 125677021 is about 11210.5763009758. The cubic root of 125677021 is about 500.9010698375.

The spelling of 125677021 in words is "one hundred twenty-five million, six hundred seventy-seven thousand, twenty-one".