122988556 has 6 divisors (see below), whose sum is σ = 215229980. Its totient is φ = 61494276.

The previous prime is 122988533. The next prime is 122988571. The reversal of 122988556 is 655889221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15373566 + ... + 15373573.

Almost surely, 2^122988556 is an apocalyptic number.

It is an amenable number.

122988556 is a deficient number, since it is larger than the sum of its proper divisors (92241424).

122988556 is a wasteful number, since it uses less digits than its factorization.

122988556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30747143 (or 30747141 counting only the distinct ones).

The product of its digits is 345600, while the sum is 46.

The square root of 122988556 is about 11090.0205590432. The cubic root of 122988556 is about 497.3035592213.

The spelling of 122988556 in words is "one hundred twenty-two million, nine hundred eighty-eight thousand, five hundred fifty-six".