121056955 has 8 divisors (see below), whose sum is σ = 145550304. Its totient is φ = 96657600.

The previous prime is 121056941. The next prime is 121056959. The reversal of 121056955 is 559650121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121056955 - 2¹⁵ = 121024187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121056955.

It is not an unprimeable number, because it can be changed into a prime (121056959) 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, 20631 + ... + 25840.

It is an arithmetic number, because the mean of its divisors is an integer number (18193788).

Almost surely, 2^121056955 is an apocalyptic number.

121056955 is a deficient number, since it is larger than the sum of its proper divisors (24493349).

121056955 is an equidigital number, since it uses as much as digits as its factorization.

121056955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46997.

The product of its (nonzero) digits is 13500, while the sum is 34.

The square root of 121056955 is about 11002.5885590619. The cubic root of 121056955 is about 494.6863366726.

The spelling of 121056955 in words is "one hundred twenty-one million, fifty-six thousand, nine hundred fifty-five".