13081394 has 8 divisors (see below), whose sum is σ = 19639920. Its totient is φ = 6534756.

The previous prime is 13081379. The next prime is 13081423. The reversal of 13081394 is 49318031.

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

It is a super-2 number, since 2×13081394² = 342245737966472, which contains 22 as substring.

It is an unprimeable number.

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, 677 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (2454990).

Almost surely, 2^13081394 is an apocalyptic number.

13081394 is a deficient number, since it is larger than the sum of its proper divisors (6558526).

13081394 is a wasteful number, since it uses less digits than its factorization.

13081394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13081394 is about 3616.8209798109. The cubic root of 13081394 is about 235.6231777329.

The spelling of 13081394 in words is "thirteen million, eighty-one thousand, three hundred ninety-four".