122789002 has 24 divisors (see below), whose sum is σ = 216479844. Its totient is φ = 52077312.

The previous prime is 122788997. The next prime is 122789003. The reversal of 122789002 is 200987221.

It can be written as a sum of positive squares in 2 ways, for example, as 122788561 + 441 = 11081^2 + 21^2 .

It is not an unprimeable number, because it can be changed into a prime (122789003) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3048 + ... + 15964.

Almost surely, 2^122789002 is an apocalyptic number.

122789002 is a deficient number, since it is larger than the sum of its proper divisors (93690842).

122789002 is a wasteful number, since it uses less digits than its factorization.

122789002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13030 (or 13023 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 122789002 is about 11081.0198989082. The cubic root of 122789002 is about 497.0344484487.

The spelling of 122789002 in words is "one hundred twenty-two million, seven hundred eighty-nine thousand, two".