16313313 has 4 divisors (see below), whose sum is σ = 21751088. Its totient is φ = 10875540.

The previous prime is 16313309. The next prime is 16313333. The reversal of 16313313 is 31331361.

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 not a de Polignac number, because 16313313 - 2² = 16313309 is a prime.

It is a super-2 number, since 2×16313313² = 532248362071938, which contains 22 as substring.

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 16313313.

It is not an unprimeable number, because it can be changed into a prime (16313333) 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, 2718883 + ... + 2718888.

It is an arithmetic number, because the mean of its divisors is an integer number (5437772).

Almost surely, 2^16313313 is an apocalyptic number.

It is an amenable number.

16313313 is a deficient number, since it is larger than the sum of its proper divisors (5437775).

16313313 is an equidigital number, since it uses as much as digits as its factorization.

16313313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437774.

The product of its digits is 486, while the sum is 21.

The square root of 16313313 is about 4038.9742509702. The cubic root of 16313313 is about 253.6183793282.

Adding to 16313313 its reverse (31331361), we get a palindrome (47644674).

The spelling of 16313313 in words is "sixteen million, three hundred thirteen thousand, three hundred thirteen".