12998522 has 8 divisors (see below), whose sum is σ = 19521216. Its totient is φ = 6491452.

The previous prime is 12998521. The next prime is 12998561. The reversal of 12998522 is 22589921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12998521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538 + ... + 5325.

It is an arithmetic number, because the mean of its divisors is an integer number (2440152).

Almost surely, 2^12998522 is an apocalyptic number.

12998522 is a deficient number, since it is larger than the sum of its proper divisors (6522694).

12998522 is an equidigital number, since it uses as much as digits as its factorization.

12998522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812.

The product of its digits is 25920, while the sum is 38.

The square root of 12998522 is about 3605.3463079155. The cubic root of 12998522 is about 235.1245574788.

The spelling of 12998522 in words is "twelve million, nine hundred ninety-eight thousand, five hundred twenty-two".