120917288 has 8 divisors (see below), whose sum is σ = 226719930. Its totient is φ = 60458640.

The previous prime is 120917281. The next prime is 120917299. The reversal of 120917288 is 882719021.

It can be written as a sum of positive squares in only one way, i.e., 114875524 + 6041764 = 10718^2 + 2458^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (120917281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7557323 + ... + 7557338.

Almost surely, 2^120917288 is an apocalyptic number.

It is an amenable number.

120917288 is a deficient number, since it is larger than the sum of its proper divisors (105802642).

120917288 is a wasteful number, since it uses less digits than its factorization.

120917288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15114667 (or 15114663 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 120917288 is about 10996.2397209228. The cubic root of 120917288 is about 494.4960186950.

The spelling of 120917288 in words is "one hundred twenty million, nine hundred seventeen thousand, two hundred eighty-eight".