13142656 has 16 divisors (see below), whose sum is σ = 26182890. Its totient is φ = 6571264.

The previous prime is 13142641. The next prime is 13142693. The reversal of 13142656 is 65624131.

It can be written as a sum of positive squares in only one way, i.e., 12110400 + 1032256 = 3480^2 + 1016^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51211 + ... + 51466.

Almost surely, 2^13142656 is an apocalyptic number.

13142656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13142656 is a deficient number, since it is larger than the sum of its proper divisors (13040234).

13142656 is an equidigital number, since it uses as much as digits as its factorization.

13142656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102691 (or 102679 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 13142656 is about 3625.2801271074. The cubic root of 13142656 is about 235.9904238190.

Adding to 13142656 its reverse (65624131), we get a palindrome (78766787).

The spelling of 13142656 in words is "thirteen million, one hundred forty-two thousand, six hundred fifty-six".