125627409 has 16 divisors (see below), whose sum is σ = 186690240. Its totient is φ = 83492640.

The previous prime is 125627401. The next prime is 125627441. The reversal of 125627409 is 904726521.

125627409 is a `hidden beast` number, since 1 + 25 + 627 + 4 + 0 + 9 = 666.

It is not a de Polignac number, because 125627409 - 2³ = 125627401 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125627401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1909 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (11668140).

Almost surely, 2^125627409 is an apocalyptic number.

It is an amenable number.

125627409 is a deficient number, since it is larger than the sum of its proper divisors (61062831).

125627409 is a wasteful number, since it uses less digits than its factorization.

125627409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14397 (or 14391 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 125627409 is about 11208.3633506413. The cubic root of 125627409 is about 500.8351496069.

The spelling of 125627409 in words is "one hundred twenty-five million, six hundred twenty-seven thousand, four hundred nine".