13872533 has 2 divisors, whose sum is σ = 13872534. Its totient is φ = 13872532.

The previous prime is 13872517. The next prime is 13872557. The reversal of 13872533 is 33527831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 1643524 = 3497^2 + 1282^2 .

It is a cyclic number.

It is not a de Polignac number, because 13872533 - 2⁴ = 13872517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13872533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13872503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936266 + 6936267.

It is an arithmetic number, because the mean of its divisors is an integer number (6936267).

Almost surely, 2^13872533 is an apocalyptic number.

It is an amenable number.

13872533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872533 is an equidigital number, since it uses as much as digits as its factorization.

13872533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 13872533 is about 3724.5849433192. The cubic root of 13872533 is about 240.2805342264.

The spelling of 13872533 in words is "thirteen million, eight hundred seventy-two thousand, five hundred thirty-three".