16133539 has 2 divisors, whose sum is σ = 16133540. Its totient is φ = 16133538.

The previous prime is 16133521. The next prime is 16133563. The reversal of 16133539 is 93533161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16133539 - 2²³ = 7744931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16133539.

It is not a weakly prime, because it can be changed into another prime (16133519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066769 + 8066770.

It is an arithmetic number, because the mean of its divisors is an integer number (8066770).

Almost surely, 2^16133539 is an apocalyptic number.

16133539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16133539 is an equidigital number, since it uses as much as digits as its factorization.

16133539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 31.

The square root of 16133539 is about 4016.6576901698. The cubic root of 16133539 is about 252.6833044679.

The spelling of 16133539 in words is "sixteen million, one hundred thirty-three thousand, five hundred thirty-nine".