121479994 has 12 divisors (see below), whose sum is σ = 193570254. Its totient is φ = 57166784.

The previous prime is 121479983. The next prime is 121480003. The reversal of 121479994 is 499974121.

It can be written as a sum of positive squares in 3 ways, for example, as 121330225 + 149769 = 11015^2 + 387^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104509 + ... + 105664.

Almost surely, 2^121479994 is an apocalyptic number.

121479994 is a deficient number, since it is larger than the sum of its proper divisors (72090260).

121479994 is a wasteful number, since it uses less digits than its factorization.

121479994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210209 (or 210192 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 121479994 is about 11021.7963145760. The cubic root of 121479994 is about 495.2619013331.

The spelling of 121479994 in words is "one hundred twenty-one million, four hundred seventy-nine thousand, nine hundred ninety-four".