13144923 has 20 divisors (see below), whose sum is σ = 21422808. Its totient is φ = 7966080.

The previous prime is 13144919. The next prime is 13144939. The reversal of 13144923 is 32944131.

13144923 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13144923 - 2² = 13144919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13144993) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6486 + ... + 8267.

Almost surely, 2^13144923 is an apocalyptic number.

13144923 is a deficient number, since it is larger than the sum of its proper divisors (8277885).

13144923 is a wasteful number, since it uses less digits than its factorization.

13144923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14776 (or 14767 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 13144923 is about 3625.5927791190. The cubic root of 13144923 is about 236.0039918409.

It can be divided in two parts, 131 and 44923, that added together give a palindrome (45054).

The spelling of 13144923 in words is "thirteen million, one hundred forty-four thousand, nine hundred twenty-three".