13297056 has 24 divisors (see below), whose sum is σ = 34905024. Its totient is φ = 4432320.

The previous prime is 13297033. The next prime is 13297057. The reversal of 13297056 is 65079231.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (13297057) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69160 + ... + 69351.

It is an arithmetic number, because the mean of its divisors is an integer number (1454376).

Almost surely, 2^13297056 is an apocalyptic number.

13297056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13297056 is an abundant number, since it is smaller than the sum of its proper divisors (21607968).

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

13297056 is a wasteful number, since it uses less digits than its factorization.

13297056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138524 (or 138516 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 13297056 is about 3646.5128547696. The cubic root of 13297056 is about 236.9109672876.

It can be divided in two parts, 1329 and 7056, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 13297056 in words is "thirteen million, two hundred ninety-seven thousand, fifty-six".