13213274 has 4 divisors (see below), whose sum is σ = 19819914. Its totient is φ = 6606636.

The previous prime is 13213273. The next prime is 13213279. The reversal of 13213274 is 47231231.

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., 13213225 + 49 = 3635^2 + 7^2 .

It is not an unprimeable number, because it can be changed into a prime (13213273) by changing a digit.

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 as a sum of consecutive naturals, namely, 3303317 + ... + 3303320.

Almost surely, 2^13213274 is an apocalyptic number.

13213274 is a deficient number, since it is larger than the sum of its proper divisors (6606640).

13213274 is an equidigital number, since it uses as much as digits as its factorization.

13213274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606639.

The product of its digits is 1008, while the sum is 23.

The square root of 13213274 is about 3635.0067400213. The cubic root of 13213274 is about 236.4123429032.

The spelling of 13213274 in words is "thirteen million, two hundred thirteen thousand, two hundred seventy-four".