13297536 has 192 divisors, whose sum is σ = 46781280. Its totient is φ = 3538944.

The previous prime is 13297523. The next prime is 13297547. The reversal of 13297536 is 63579231.

13297536 is a `hidden beast` number, since 1 + 32 + 97 + 536 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (34020) is a multiple of the sum of its prime divisors (126).

It is a self number, because there is not a number n which added to its sum of digits gives 13297536.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 137040 + ... + 137136.

Almost surely, 2^13297536 is an apocalyptic number.

13297536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13297536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23390640).

13297536 is an abundant number, since it is smaller than the sum of its proper divisors (33483744).

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

13297536 is a wasteful number, since it uses less digits than its factorization.

13297536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 126 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 13297536 is about 3646.5786704800. The cubic root of 13297536 is about 236.9138179411.

The spelling of 13297536 in words is "thirteen million, two hundred ninety-seven thousand, five hundred thirty-six".