121253994 has 12 divisors (see below), whose sum is σ = 262717026. Its totient is φ = 40417992.

The previous prime is 121253981. The next prime is 121254011. The reversal of 121253994 is 499352121.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 28227969 = 9645^2 + 5313^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3368149 + ... + 3368184.

Almost surely, 2^121253994 is an apocalyptic number.

121253994 is an abundant number, since it is smaller than the sum of its proper divisors (141463032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121253994 is a wasteful number, since it uses less digits than its factorization.

121253994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736341 (or 6736338 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 121253994 is about 11011.5391294769. The cubic root of 121253994 is about 494.9545841406.

The spelling of 121253994 in words is "one hundred twenty-one million, two hundred fifty-three thousand, nine hundred ninety-four".