16313539 has 4 divisors (see below), whose sum is σ = 17796600. Its totient is φ = 14830480.

The previous prime is 16313537. The next prime is 16313543. The reversal of 16313539 is 93531361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16313539 - 2¹ = 16313537 is a prime.

It is a super-2 number, since 2×16313539² = 532263109409042, 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 self number, because there is not a number n which added to its sum of digits gives 16313539.

It is not an unprimeable number, because it can be changed into a prime (16313537) 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, 741514 + ... + 741535.

It is an arithmetic number, because the mean of its divisors is an integer number (4449150).

Almost surely, 2^16313539 is an apocalyptic number.

16313539 is a deficient number, since it is larger than the sum of its proper divisors (1483061).

16313539 is a wasteful number, since it uses less digits than its factorization.

16313539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483060.

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

The square root of 16313539 is about 4039.0022282737. The cubic root of 16313539 is about 253.6195505084.

The spelling of 16313539 in words is "sixteen million, three hundred thirteen thousand, five hundred thirty-nine".