13257723 has 8 divisors (see below), whose sum is σ = 17702928. Its totient is φ = 8825504.

The previous prime is 13257709. The next prime is 13257731. The reversal of 13257723 is 32775231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13257723 - 2⁶ = 13257659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13257703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (2212866).

Almost surely, 2^13257723 is an apocalyptic number.

13257723 is a deficient number, since it is larger than the sum of its proper divisors (4445205).

13257723 is an equidigital number, since it uses as much as digits as its factorization.

13257723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493.

The product of its digits is 8820, while the sum is 30.

The square root of 13257723 is about 3641.1156257389. The cubic root of 13257723 is about 236.6771405358.

The spelling of 13257723 in words is "thirteen million, two hundred fifty-seven thousand, seven hundred twenty-three".