13281996 has 48 divisors (see below), whose sum is σ = 38146304. Its totient is φ = 3502656.

The previous prime is 13281973. The next prime is 13282019. The reversal of 13281996 is 69918231.

13281996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13281973) and next prime (13282019).

It is a super-2 number, since 2×13281996² = 352822835488032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4990 + ... + 7173.

Almost surely, 2^13281996 is an apocalyptic number.

It is an amenable number.

13281996 is an abundant number, since it is smaller than the sum of its proper divisors (24864308).

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

13281996 is a wasteful number, since it uses less digits than its factorization.

13281996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12190 (or 12188 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 13281996 is about 3644.4472831967. The cubic root of 13281996 is about 236.8214931718.

It can be divided in two parts, 132 and 81996, that added together give a palindrome (82128).

The spelling of 13281996 in words is "thirteen million, two hundred eighty-one thousand, nine hundred ninety-six".