121179957 has 16 divisors (see below), whose sum is σ = 163995840. Its totient is φ = 79584512.

The previous prime is 121179953. The next prime is 121179983. The reversal of 121179957 is 759971121.

It is a cyclic number.

It is not a de Polignac number, because 121179957 - 2² = 121179953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121179953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59683 + ... + 61679.

It is an arithmetic number, because the mean of its divisors is an integer number (10249740).

Almost surely, 2^121179957 is an apocalyptic number.

It is an amenable number.

121179957 is a deficient number, since it is larger than the sum of its proper divisors (42815883).

121179957 is a wasteful number, since it uses less digits than its factorization.

121179957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292.

The product of its digits is 39690, while the sum is 42.

The square root of 121179957 is about 11008.1768245246. The cubic root of 121179957 is about 494.8538248109.

The spelling of 121179957 in words is "one hundred twenty-one million, one hundred seventy-nine thousand, nine hundred fifty-seven".