125788917 has 12 divisors (see below), whose sum is σ = 173277824. Its totient is φ = 81084360.

The previous prime is 125788913. The next prime is 125788919. The reversal of 125788917 is 719887521.

It is a happy number.

It is not a de Polignac number, because 125788917 - 2² = 125788913 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 (125788913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107578 + ... + 108740.

Almost surely, 2^125788917 is an apocalyptic number.

It is an amenable number.

125788917 is a deficient number, since it is larger than the sum of its proper divisors (47488907).

125788917 is an frugal number, since it uses more digits than its factorization.

125788917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360 (or 1197 counting only the distinct ones).

The product of its digits is 282240, while the sum is 48.

The square root of 125788917 is about 11215.5658350348. The cubic root of 125788917 is about 501.0496841177.

The spelling of 125788917 in words is "one hundred twenty-five million, seven hundred eighty-eight thousand, nine hundred seventeen".