122555530 has 16 divisors (see below), whose sum is σ = 220900680. Its totient is φ = 48955392.

The previous prime is 122555513. The next prime is 122555591. The reversal of 122555530 is 35555221.

It can be written as a sum of positive squares in 4 ways, for example, as 102637161 + 19918369 = 10131^2 + 4463^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279 + ... + 15658.

Almost surely, 2^122555530 is an apocalyptic number.

122555530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122555530 is a deficient number, since it is larger than the sum of its proper divisors (98345150).

122555530 is a wasteful number, since it uses less digits than its factorization.

122555530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16713.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 122555530 is about 11070.4801160564. The cubic root of 122555530 is about 496.7192268045.

The spelling of 122555530 in words is "one hundred twenty-two million, five hundred fifty-five thousand, five hundred thirty".