13264981 has 8 divisors (see below), whose sum is σ = 14425560. Its totient is φ = 12146688.

The previous prime is 13264963. The next prime is 13265009. The reversal of 13264981 is 18946231.

It can be written as a sum of positive squares in 4 ways, for example, as 10595025 + 2669956 = 3255^2 + 1634^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13264981 - 2⁵ = 13264949 is a prime.

It is a super-2 number, since 2×13264981² = 351919441860722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13264921) 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 7 ways as a sum of consecutive naturals, for example, 9916 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (1803195).

Almost surely, 2^13264981 is an apocalyptic number.

It is an amenable number.

13264981 is a deficient number, since it is larger than the sum of its proper divisors (1160579).

13264981 is a wasteful number, since it uses less digits than its factorization.

13264981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21143.

The product of its digits is 10368, while the sum is 34.

The square root of 13264981 is about 3642.1121619192. The cubic root of 13264981 is about 236.7203226446.

The spelling of 13264981 in words is "thirteen million, two hundred sixty-four thousand, nine hundred eighty-one".