16118539 has 2 divisors, whose sum is σ = 16118540. Its totient is φ = 16118538.

The previous prime is 16118537. The next prime is 16118549. The reversal of 16118539 is 93581161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16118539 - 2¹ = 16118537 is a prime.

Together with 16118537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16118537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8059269 + 8059270.

It is an arithmetic number, because the mean of its divisors is an integer number (8059270).

Almost surely, 2^16118539 is an apocalyptic number.

16118539 is a deficient number, since it is larger than the sum of its proper divisors (1).

16118539 is an equidigital number, since it uses as much as digits as its factorization.

16118539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 16118539 is about 4014.7900318697. The cubic root of 16118539 is about 252.6049702429.

The spelling of 16118539 in words is "sixteen million, one hundred eighteen thousand, five hundred thirty-nine".