13238861 has 4 divisors (see below), whose sum is σ = 13343232. Its totient is φ = 13134492.

The previous prime is 13238857. The next prime is 13238879. The reversal of 13238861 is 16883231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16883231 = 751 ⋅22481.

It is a cyclic number.

It is not a de Polignac number, because 13238861 - 2² = 13238857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13238831) 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, 51995 + ... + 52248.

It is an arithmetic number, because the mean of its divisors is an integer number (3335808).

Almost surely, 2^13238861 is an apocalyptic number.

It is an amenable number.

13238861 is a deficient number, since it is larger than the sum of its proper divisors (104371).

13238861 is a wasteful number, since it uses less digits than its factorization.

13238861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104370.

The product of its digits is 6912, while the sum is 32.

The square root of 13238861 is about 3638.5245636109. The cubic root of 13238861 is about 236.5648456618.

The spelling of 13238861 in words is "thirteen million, two hundred thirty-eight thousand, eight hundred sixty-one".