122402530 has 16 divisors (see below), whose sum is σ = 221469624. Its totient is φ = 48706560.

The previous prime is 122402519. The next prime is 122402551. The reversal of 122402530 is 35204221.

It can be written as a sum of positive squares in 4 ways, for example, as 60512841 + 61889689 = 7779^2 + 7867^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122402498 and 122402507.

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, 29781 + ... + 33640.

Almost surely, 2^122402530 is an apocalyptic number.

122402530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122402530 is a deficient number, since it is larger than the sum of its proper divisors (99067094).

122402530 is a wasteful number, since it uses less digits than its factorization.

122402530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63621.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 122402530 is about 11063.5676885894. The cubic root of 122402530 is about 496.5124370352.

Adding to 122402530 its reverse (35204221), we get a palindrome (157606751).

The spelling of 122402530 in words is "one hundred twenty-two million, four hundred two thousand, five hundred thirty".