13242056 has 8 divisors (see below), whose sum is σ = 24828870. Its totient is φ = 6621024.

The previous prime is 13242049. The next prime is 13242071. The reversal of 13242056 is 65024231.

It can be written as a sum of positive squares in only one way, i.e., 13205956 + 36100 = 3634^2 + 190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827621 + ... + 827636.

Almost surely, 2^13242056 is an apocalyptic number.

It is an amenable number.

13242056 is a deficient number, since it is larger than the sum of its proper divisors (11586814).

13242056 is a wasteful number, since it uses less digits than its factorization.

13242056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655263 (or 1655259 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13242056 is about 3638.9635887159. The cubic root of 13242056 is about 236.5838745871.

Adding to 13242056 its reverse (65024231), we get a palindrome (78266287).

The spelling of 13242056 in words is "thirteen million, two hundred forty-two thousand, fifty-six".