13381081 has 4 divisors (see below), whose sum is σ = 15292672. Its totient is φ = 11469492.

The previous prime is 13381079. The next prime is 13381097. The reversal of 13381081 is 18018331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13381081 - 2¹ = 13381079 is a prime.

It is a super-2 number, since 2×13381081² = 358106657457122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13381001) 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 in 3 ways as a sum of consecutive naturals, for example, 955785 + ... + 955798.

It is an arithmetic number, because the mean of its divisors is an integer number (3823168).

Almost surely, 2^13381081 is an apocalyptic number.

It is an amenable number.

13381081 is a deficient number, since it is larger than the sum of its proper divisors (1911591).

13381081 is an equidigital number, since it uses as much as digits as its factorization.

13381081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911590.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 13381081 is about 3658.0159923106. The cubic root of 13381081 is about 237.4089386820.

The spelling of 13381081 in words is "thirteen million, three hundred eighty-one thousand, eighty-one".