122813530 has 64 divisors (see below), whose sum is σ = 268738560. Its totient is φ = 39472704.

The previous prime is 122813507. The next prime is 122813533. The reversal of 122813530 is 35318221.

It is a junction number, because it is equal to n+sod(n) for n = 122813495 and 122813504.

It is not an unprimeable number, because it can be changed into a prime (122813533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141879 + ... + 142741.

It is an arithmetic number, because the mean of its divisors is an integer number (4199040).

Almost surely, 2^122813530 is an apocalyptic number.

122813530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122813530 is an abundant number, since it is smaller than the sum of its proper divisors (145925030).

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

122813530 is a wasteful number, since it uses less digits than its factorization.

122813530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 122813530 is about 11082.1266009733. The cubic root of 122813530 is about 497.0675416657.

The spelling of 122813530 in words is "one hundred twenty-two million, eight hundred thirteen thousand, five hundred thirty".