120887517 has 8 divisors (see below), whose sum is σ = 168191424. Its totient is φ = 77087648.

The previous prime is 120887477. The next prime is 120887521. The reversal of 120887517 is 715788021.

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 120887517 - 2⁶ = 120887453 is a prime.

It is a super-2 number, since 2×120887517² = 29227583532850578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120887587) 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, 875928 + ... + 876065.

It is an arithmetic number, because the mean of its divisors is an integer number (21023928).

Almost surely, 2^120887517 is an apocalyptic number.

It is an amenable number.

120887517 is a deficient number, since it is larger than the sum of its proper divisors (47303907).

120887517 is a wasteful number, since it uses less digits than its factorization.

120887517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752019.

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 120887517 is about 10994.8859475667. The cubic root of 120887517 is about 494.4554321376.

The spelling of 120887517 in words is "one hundred twenty million, eight hundred eighty-seven thousand, five hundred seventeen".