13581896 has 8 divisors (see below), whose sum is σ = 25466070. Its totient is φ = 6790944.

The previous prime is 13581863. The next prime is 13581899. The reversal of 13581896 is 69818531.

It can be written as a sum of positive squares in only one way, i.e., 12859396 + 722500 = 3586^2 + 850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13581899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848861 + ... + 848876.

Almost surely, 2^13581896 is an apocalyptic number.

It is an amenable number.

13581896 is a deficient number, since it is larger than the sum of its proper divisors (11884174).

13581896 is a wasteful number, since it uses less digits than its factorization.

13581896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697743 (or 1697739 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 13581896 is about 3685.3623973770. The cubic root of 13581896 is about 238.5906755703.

The spelling of 13581896 in words is "thirteen million, five hundred eighty-one thousand, eight hundred ninety-six".