122164520 has 16 divisors (see below), whose sum is σ = 274870260. Its totient is φ = 48865792.

The previous prime is 122164513. The next prime is 122164531. The reversal of 122164520 is 25461221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 117896164 + 4268356 = 10858^2 + 2066^2 .

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, 1527017 + ... + 1527096.

Almost surely, 2^122164520 is an apocalyptic number.

122164520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122164520 is an abundant number, since it is smaller than the sum of its proper divisors (152705740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122164520 is a wasteful number, since it uses less digits than its factorization.

122164520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054124 (or 3054120 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 122164520 is about 11052.8059785739. The cubic root of 122164520 is about 496.1904077316.

The spelling of 122164520 in words is "one hundred twenty-two million, one hundred sixty-four thousand, five hundred twenty".