13144576 has 20 divisors (see below), whose sum is σ = 26264502. Its totient is φ = 6572032.

The previous prime is 13144543. The next prime is 13144577. The reversal of 13144576 is 67544131.

It can be written as a sum of positive squares in only one way, i.e., 9144576 + 4000000 = 3024^2 + 2000^2 .

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (13144577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12325 + ... + 13348.

Almost surely, 2^13144576 is an apocalyptic number.

13144576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13144576 is a deficient number, since it is larger than the sum of its proper divisors (13119926).

13144576 is an frugal number, since it uses more digits than its factorization.

13144576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25691 (or 25675 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 13144576 is about 3625.5449245596. The cubic root of 13144576 is about 236.0019151429.

The spelling of 13144576 in words is "thirteen million, one hundred forty-four thousand, five hundred seventy-six".