126625917 has 32 divisors (see below), whose sum is σ = 194826240. Its totient is φ = 72432000.

The previous prime is 126625909. The next prime is 126625931. The reversal of 126625917 is 719526621.

It is not a de Polignac number, because 126625917 - 2³ = 126625909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126625997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40434 + ... + 43452.

It is an arithmetic number, because the mean of its divisors is an integer number (6088320).

Almost surely, 2^126625917 is an apocalyptic number.

It is an amenable number.

126625917 is a deficient number, since it is larger than the sum of its proper divisors (68200323).

126625917 is a wasteful number, since it uses less digits than its factorization.

126625917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105.

The product of its digits is 45360, while the sum is 39.

The square root of 126625917 is about 11252.8181803493. The cubic root of 126625917 is about 502.1585571851.

The spelling of 126625917 in words is "one hundred twenty-six million, six hundred twenty-five thousand, nine hundred seventeen".