13274566 has 4 divisors (see below), whose sum is σ = 19911852. Its totient is φ = 6637282.

The previous prime is 13274563. The next prime is 13274567. The reversal of 13274566 is 66547231.

It is a happy number.

13274566 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 is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13274563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318640 + ... + 3318643.

It is an arithmetic number, because the mean of its divisors is an integer number (4977963).

Almost surely, 2^13274566 is an apocalyptic number.

13274566 is a deficient number, since it is larger than the sum of its proper divisors (6637286).

13274566 is an equidigital number, since it uses as much as digits as its factorization.

13274566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6637285.

The product of its digits is 30240, while the sum is 34.

The square root of 13274566 is about 3643.4277816364. The cubic root of 13274566 is about 236.7773253147. Note that the first 3 decimals are identical.

The spelling of 13274566 in words is "thirteen million, two hundred seventy-four thousand, five hundred sixty-six".