125217516 has 12 divisors (see below), whose sum is σ = 292174232. Its totient is φ = 41739168.

The previous prime is 125217511. The next prime is 125217539. The reversal of 125217516 is 615712521.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (125217511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5217385 + ... + 5217408.

Almost surely, 2^125217516 is an apocalyptic number.

It is an amenable number.

125217516 is an abundant number, since it is smaller than the sum of its proper divisors (166956716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125217516 is a wasteful number, since it uses less digits than its factorization.

125217516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10434800 (or 10434798 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 125217516 is about 11190.0632705986. The cubic root of 125217516 is about 500.2898532710.

The spelling of 125217516 in words is "one hundred twenty-five million, two hundred seventeen thousand, five hundred sixteen".