121912953 has 8 divisors (see below), whose sum is σ = 165215616. Its totient is φ = 79942800.

The previous prime is 121912951. The next prime is 121912957. The reversal of 121912953 is 359219121.

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

It is not a de Polignac number, because 121912953 - 2¹ = 121912951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121912951) 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, 332913 + ... + 333278.

It is an arithmetic number, because the mean of its divisors is an integer number (20651952).

Almost surely, 2^121912953 is an apocalyptic number.

It is an amenable number.

121912953 is a deficient number, since it is larger than the sum of its proper divisors (43302663).

121912953 is an equidigital number, since it uses as much as digits as its factorization.

121912953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666255.

The product of its digits is 4860, while the sum is 33.

The square root of 121912953 is about 11041.4198815189. The cubic root of 121912953 is about 495.8495806993.

The spelling of 121912953 in words is "one hundred twenty-one million, nine hundred twelve thousand, nine hundred fifty-three".