13231774 has 4 divisors (see below), whose sum is σ = 19847664. Its totient is φ = 6615886.

The previous prime is 13231741. The next prime is 13231781. The reversal of 13231774 is 47713231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47713231 = 743 ⋅64217.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307942 + ... + 3307945.

It is an arithmetic number, because the mean of its divisors is an integer number (4961916).

Almost surely, 2^13231774 is an apocalyptic number.

13231774 is a deficient number, since it is larger than the sum of its proper divisors (6615890).

13231774 is an equidigital number, since it uses as much as digits as its factorization.

13231774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615889.

The product of its digits is 3528, while the sum is 28.

The square root of 13231774 is about 3637.5505494769. The cubic root of 13231774 is about 236.5226256574.

The spelling of 13231774 in words is "thirteen million, two hundred thirty-one thousand, seven hundred seventy-four".