13391494 has 4 divisors (see below), whose sum is σ = 20087244. Its totient is φ = 6695746.

The previous prime is 13391467. The next prime is 13391501. The reversal of 13391494 is 49419331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49419331 = 13 ⋅3801487.

It is a super-2 number, since 2×13391494² = 358664223104072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3347872 + ... + 3347875.

It is an arithmetic number, because the mean of its divisors is an integer number (5021811).

Almost surely, 2^13391494 is an apocalyptic number.

13391494 is a deficient number, since it is larger than the sum of its proper divisors (6695750).

13391494 is an equidigital number, since it uses as much as digits as its factorization.

13391494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695749.

The product of its digits is 11664, while the sum is 34.

The square root of 13391494 is about 3659.4390280479. The cubic root of 13391494 is about 237.4705056633.

The spelling of 13391494 in words is "thirteen million, three hundred ninety-one thousand, four hundred ninety-four".