13871233 has 2 divisors, whose sum is σ = 13871234. Its totient is φ = 13871232.

The previous prime is 13871183. The next prime is 13871279. The reversal of 13871233 is 33217831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13082689 + 788544 = 3617^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 13871233 - 2⁹ = 13870721 is a prime.

It is a super-2 number, since 2×13871233² = 384822209880578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13871293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935616 + 6935617.

It is an arithmetic number, because the mean of its divisors is an integer number (6935617).

Almost surely, 2^13871233 is an apocalyptic number.

It is an amenable number.

13871233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13871233 is an equidigital number, since it uses as much as digits as its factorization.

13871233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 13871233 is about 3724.4104231408. The cubic root of 13871233 is about 240.2730284005.

It can be divided in two parts, 1387 and 1233, that multiplied together give a palindrome (1710171).

The spelling of 13871233 in words is "thirteen million, eight hundred seventy-one thousand, two hundred thirty-three".