13251723 has 4 divisors (see below), whose sum is σ = 17668968. Its totient is φ = 8834480.

The previous prime is 13251709. The next prime is 13251727. The reversal of 13251723 is 32715231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13251723 - 2⁶ = 13251659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13251693 and 13251702.

It is not an unprimeable number, because it can be changed into a prime (13251727) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2208618 + ... + 2208623.

It is an arithmetic number, because the mean of its divisors is an integer number (4417242).

Almost surely, 2^13251723 is an apocalyptic number.

13251723 is a deficient number, since it is larger than the sum of its proper divisors (4417245).

13251723 is an equidigital number, since it uses as much as digits as its factorization.

13251723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417244.

The product of its digits is 1260, while the sum is 24.

The square root of 13251723 is about 3640.2916091984. The cubic root of 13251723 is about 236.6414311077.

Adding to 13251723 its reverse (32715231), we get a palindrome (45966954).

The spelling of 13251723 in words is "thirteen million, two hundred fifty-one thousand, seven hundred twenty-three".