13271004 has 36 divisors (see below), whose sum is σ = 34330296. Its totient is φ = 4320288.

The previous prime is 13270997. The next prime is 13271021. The reversal of 13271004 is 40017231.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13271004² = 352239094336032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2739 + ... + 5834.

Almost surely, 2^13271004 is an apocalyptic number.

It is an amenable number.

13271004 is an abundant number, since it is smaller than the sum of its proper divisors (21059292).

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

13271004 is a wasteful number, since it uses less digits than its factorization.

13271004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626 (or 8621 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 13271004 is about 3642.9389234518. The cubic root of 13271004 is about 236.7561450546.

Adding to 13271004 its reverse (40017231), we get a palindrome (53288235).

It can be divided in two parts, 1327100 and 4, that added together give a square (1327104 = 1152²).

The spelling of 13271004 in words is "thirteen million, two hundred seventy-one thousand, four".