121053656 has 32 divisors (see below), whose sum is σ = 237006000. Its totient is φ = 57891456.

The previous prime is 121053649. The next prime is 121053659. The reversal of 121053656 is 656350121.

It is a super-3 number, since 3×121053656³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121053659) 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, 22895 + ... + 27681.

Almost surely, 2^121053656 is an apocalyptic number.

It is an amenable number.

121053656 is a deficient number, since it is larger than the sum of its proper divisors (115952344).

121053656 is a wasteful number, since it uses less digits than its factorization.

121053656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931 (or 4927 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 121053656 is about 11002.4386387746. The cubic root of 121053656 is about 494.6818429612.

The spelling of 121053656 in words is "one hundred twenty-one million, fifty-three thousand, six hundred fifty-six".