13144556 has 6 divisors (see below), whose sum is σ = 23002980. Its totient is φ = 6572276.

The previous prime is 13144543. The next prime is 13144577. The reversal of 13144556 is 65544131.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643066 + ... + 1643073.

It is an arithmetic number, because the mean of its divisors is an integer number (3833830).

Almost surely, 2^13144556 is an apocalyptic number.

It is an amenable number.

13144556 is a deficient number, since it is larger than the sum of its proper divisors (9858424).

13144556 is a wasteful number, since it uses less digits than its factorization.

13144556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286143 (or 3286141 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 13144556 is about 3625.5421663525. The cubic root of 13144556 is about 236.0017954474.

Adding to 13144556 its reverse (65544131), we get a palindrome (78688687).

The spelling of 13144556 in words is "thirteen million, one hundred forty-four thousand, five hundred fifty-six".