16198313 has 2 divisors, whose sum is σ = 16198314. Its totient is φ = 16198312.

The previous prime is 16198309. The next prime is 16198339. The reversal of 16198313 is 31389161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15429184 + 769129 = 3928^2 + 877^2 .

It is a cyclic number.

It is not a de Polignac number, because 16198313 - 2² = 16198309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16198313.

It is not a weakly prime, because it can be changed into another prime (16198513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8099156 + 8099157.

It is an arithmetic number, because the mean of its divisors is an integer number (8099157).

Almost surely, 2^16198313 is an apocalyptic number.

It is an amenable number.

16198313 is a deficient number, since it is larger than the sum of its proper divisors (1).

16198313 is an equidigital number, since it uses as much as digits as its factorization.

16198313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 16198313 is about 4024.7127847835. The cubic root of 16198313 is about 253.0210161319.

The spelling of 16198313 in words is "sixteen million, one hundred ninety-eight thousand, three hundred thirteen".