13097220 has 24 divisors (see below), whose sum is σ = 36672384. Its totient is φ = 3492576.

The previous prime is 13097209. The next prime is 13097257. The reversal of 13097220 is 2279031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109084 + ... + 109203.

It is an arithmetic number, because the mean of its divisors is an integer number (1528016).

Almost surely, 2^13097220 is an apocalyptic number.

13097220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13097220 is an abundant number, since it is smaller than the sum of its proper divisors (23575164).

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

13097220 is a wasteful number, since it uses less digits than its factorization.

13097220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218299 (or 218297 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13097220 is about 3619.0081514139. The cubic root of 13097220 is about 235.7181591912.

The spelling of 13097220 in words is "thirteen million, ninety-seven thousand, two hundred twenty".