121156730 has 32 divisors (see below), whose sum is σ = 231413760. Its totient is φ = 45541440.

The previous prime is 121156723. The next prime is 121156769. The reversal of 121156730 is 37651121.

It is a self number, because there is not a number n which added to its sum of digits gives 121156730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21620 + ... + 26640.

It is an arithmetic number, because the mean of its divisors is an integer number (7231680).

Almost surely, 2^121156730 is an apocalyptic number.

121156730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121156730 is a deficient number, since it is larger than the sum of its proper divisors (110257030).

121156730 is a wasteful number, since it uses less digits than its factorization.

121156730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5174.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 121156730 is about 11007.1217854624. The cubic root of 121156730 is about 494.8222059840.

The spelling of 121156730 in words is "one hundred twenty-one million, one hundred fifty-six thousand, seven hundred thirty".