13502723 has 4 divisors (see below), whose sum is σ = 14541408. Its totient is φ = 12464040.

The previous prime is 13502707. The next prime is 13502773. The reversal of 13502723 is 32720531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32720531 = 31 ⋅1055501.

It is a cyclic number.

It is not a de Polignac number, because 13502723 - 2⁴ = 13502707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13502773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519323 + ... + 519348.

It is an arithmetic number, because the mean of its divisors is an integer number (3635352).

Almost surely, 2^13502723 is an apocalyptic number.

13502723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13502723 is a deficient number, since it is larger than the sum of its proper divisors (1038685).

13502723 is a wasteful number, since it uses less digits than its factorization.

13502723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038684.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13502723 is about 3674.6051488561. The cubic root of 13502723 is about 238.1261659525.

The spelling of 13502723 in words is "thirteen million, five hundred two thousand, seven hundred twenty-three".