121952951 has 4 divisors (see below), whose sum is σ = 129126672. Its totient is φ = 114779232.

The previous prime is 121952933. The next prime is 121952953. The reversal of 121952951 is 159259121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121952951 - 2²⁶ = 54844087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121952953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3586835 + ... + 3586868.

It is an arithmetic number, because the mean of its divisors is an integer number (32281668).

Almost surely, 2^121952951 is an apocalyptic number.

121952951 is a deficient number, since it is larger than the sum of its proper divisors (7173721).

121952951 is an equidigital number, since it uses as much as digits as its factorization.

121952951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173720.

The product of its digits is 8100, while the sum is 35.

The square root of 121952951 is about 11043.2310036511. The cubic root of 121952951 is about 495.9038019625.

The spelling of 121952951 in words is "one hundred twenty-one million, nine hundred fifty-two thousand, nine hundred fifty-one".