121507080 has 32 divisors (see below), whose sum is σ = 364521600. Its totient is φ = 32401856.

The previous prime is 121507063. The next prime is 121507117. The reversal of 121507080 is 80705121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 121507080.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506160 + ... + 506399.

It is an arithmetic number, because the mean of its divisors is an integer number (11391300).

Almost surely, 2^121507080 is an apocalyptic number.

121507080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121507080 is an abundant number, since it is smaller than the sum of its proper divisors (243014520).

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

121507080 is a wasteful number, since it uses less digits than its factorization.

121507080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012573 (or 1012569 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 121507080 is about 11023.0249931677. The cubic root of 121507080 is about 495.2987075773.

The spelling of 121507080 in words is "one hundred twenty-one million, five hundred seven thousand, eighty".