13291394 has 4 divisors (see below), whose sum is σ = 19937094. Its totient is φ = 6645696.

The previous prime is 13291381. The next prime is 13291403. The reversal of 13291394 is 49319231.

13291394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12709225 + 582169 = 3565^2 + 763^2 .

It is a super-2 number, since 2×13291394² = 353322308926472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13291394.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322847 + ... + 3322850.

Almost surely, 2^13291394 is an apocalyptic number.

13291394 is a deficient number, since it is larger than the sum of its proper divisors (6645700).

13291394 is an equidigital number, since it uses as much as digits as its factorization.

13291394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6645699.

The product of its digits is 5832, while the sum is 32.

The square root of 13291394 is about 3645.7364139499. The cubic root of 13291394 is about 236.8773362760.

The spelling of 13291394 in words is "thirteen million, two hundred ninety-one thousand, three hundred ninety-four".