13865233 has 4 divisors (see below), whose sum is σ = 14032368. Its totient is φ = 13698100.

The previous prime is 13865227. The next prime is 13865237. The reversal of 13865233 is 33256831.

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: 33256831 = 31 ⋅1072801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13865233 is a prime.

It is a super-2 number, since 2×13865233² = 384489372288578, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13865195 and 13865204.

It is not an unprimeable number, because it can be changed into a prime (13865237) 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, 83443 + ... + 83608.

It is an arithmetic number, because the mean of its divisors is an integer number (3508092).

Almost surely, 2^13865233 is an apocalyptic number.

It is an amenable number.

13865233 is a deficient number, since it is larger than the sum of its proper divisors (167135).

13865233 is an equidigital number, since it uses as much as digits as its factorization.

13865233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167134.

The product of its digits is 12960, while the sum is 31.

The square root of 13865233 is about 3723.6048393996. The cubic root of 13865233 is about 240.2383800487.

The spelling of 13865233 in words is "thirteen million, eight hundred sixty-five thousand, two hundred thirty-three".