121809496 has 16 divisors (see below), whose sum is σ = 230748840. Its totient is φ = 60276480.

The previous prime is 121809487. The next prime is 121809503. The reversal of 121809496 is 694908121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77710 + ... + 79261.

Almost surely, 2^121809496 is an apocalyptic number.

It is an amenable number.

121809496 is a deficient number, since it is larger than the sum of its proper divisors (108939344).

121809496 is a wasteful number, since it uses less digits than its factorization.

121809496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157074 (or 157070 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 121809496 is about 11036.7339371754. The cubic root of 121809496 is about 495.7092794251.

The spelling of 121809496 in words is "one hundred twenty-one million, eight hundred nine thousand, four hundred ninety-six".