16613313 has 4 divisors (see below), whose sum is σ = 22151088. Its totient is φ = 11075540.

The previous prime is 16613281. The next prime is 16613347. The reversal of 16613313 is 31331661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16613313 - 2⁵ = 16613281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16613213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2768883 + ... + 2768888.

It is an arithmetic number, because the mean of its divisors is an integer number (5537772).

Almost surely, 2^16613313 is an apocalyptic number.

It is an amenable number.

16613313 is a deficient number, since it is larger than the sum of its proper divisors (5537775).

16613313 is an equidigital number, since it uses as much as digits as its factorization.

16613313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537774.

The product of its digits is 972, while the sum is 24.

The square root of 16613313 is about 4075.9432037260. The cubic root of 16613313 is about 255.1636166411.

Adding to 16613313 its reverse (31331661), we get a palindrome (47944974).

The spelling of 16613313 in words is "sixteen million, six hundred thirteen thousand, three hundred thirteen".