16358013 has 30 divisors (see below), whose sum is σ = 27601054. Its totient is φ = 9335088.

The previous prime is 16358011. The next prime is 16358039. The reversal of 16358013 is 31085361.

It can be written as a sum of positive squares in only one way, i.e., 14607684 + 1750329 = 3822^2 + 1323^2 .

It is not a de Polignac number, because 16358013 - 2¹ = 16358011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16358011) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21231 + ... + 21987.

Almost surely, 2^16358013 is an apocalyptic number.

It is an amenable number.

16358013 is a deficient number, since it is larger than the sum of its proper divisors (11243041).

16358013 is an frugal number, since it uses more digits than its factorization.

16358013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16358013 is about 4044.5040487061. The cubic root of 16358013 is about 253.8498140816.

The spelling of 16358013 in words is "sixteen million, three hundred fifty-eight thousand, thirteen".