13123913 has 8 divisors (see below), whose sum is σ = 14587776. Its totient is φ = 11705200.

The previous prime is 13123909. The next prime is 13123919. The reversal of 13123913 is 31932131.

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 13123913 - 2² = 13123909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13123919) 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, 10673 + ... + 11838.

It is an arithmetic number, because the mean of its divisors is an integer number (1823472).

Almost surely, 2^13123913 is an apocalyptic number.

It is an amenable number.

13123913 is a deficient number, since it is larger than the sum of its proper divisors (1463863).

13123913 is a wasteful number, since it uses less digits than its factorization.

13123913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22575.

The product of its digits is 486, while the sum is 23.

The square root of 13123913 is about 3622.6941631885. The cubic root of 13123913 is about 235.8781869207.

It can be divided in two parts, 1312 and 3913, that added together give a palindrome (5225).

The spelling of 13123913 in words is "thirteen million, one hundred twenty-three thousand, nine hundred thirteen".