16368313 has 8 divisors (see below), whose sum is σ = 17917256. Its totient is φ = 14860800.

The previous prime is 16368299. The next prime is 16368323. The reversal of 16368313 is 31386361.

It can be written as a sum of positive squares in 4 ways, for example, as 1375929 + 14992384 = 1173^2 + 3872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16368313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16368323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9528 + ... + 11113.

It is an arithmetic number, because the mean of its divisors is an integer number (2239657).

Almost surely, 2^16368313 is an apocalyptic number.

16368313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16368313 is a deficient number, since it is larger than the sum of its proper divisors (1548943).

16368313 is a wasteful number, since it uses less digits than its factorization.

16368313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20715.

The product of its digits is 7776, while the sum is 31.

The square root of 16368313 is about 4045.7771812101. Note that the first 3 decimals coincide. The cubic root of 16368313 is about 253.9030826641.

The spelling of 16368313 in words is "sixteen million, three hundred sixty-eight thousand, three hundred thirteen".