13144756 has 12 divisors (see below), whose sum is σ = 23538592. Its totient is φ = 6419448.

The previous prime is 13144741. The next prime is 13144771. The reversal of 13144756 is 65744131.

It is an interprime number because it is at equal distance from previous prime (13144741) and next prime (13144771).

It is a super-2 number, since 2×13144756² = 345569220599072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38040 + ... + 38383.

Almost surely, 2^13144756 is an apocalyptic number.

It is an amenable number.

13144756 is a deficient number, since it is larger than the sum of its proper divisors (10393836).

13144756 is a wasteful number, since it uses less digits than its factorization.

13144756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76470 (or 76468 counting only the distinct ones).

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

The square root of 13144756 is about 3625.5697483292. The cubic root of 13144756 is about 236.0029923972.

Adding to 13144756 its reverse (65744131), we get a palindrome (78888887).

The spelling of 13144756 in words is "thirteen million, one hundred forty-four thousand, seven hundred fifty-six".