16315249 has 2 divisors, whose sum is σ = 16315250. Its totient is φ = 16315248.

The previous prime is 16315241. The next prime is 16315267. The reversal of 16315249 is 94251361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10400625 + 5914624 = 3225^2 + 2432^2 .

It is a cyclic number.

It is not a de Polignac number, because 16315249 - 2³ = 16315241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16315249.

It is not a weakly prime, because it can be changed into another prime (16315241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8157624 + 8157625.

It is an arithmetic number, because the mean of its divisors is an integer number (8157625).

Almost surely, 2^16315249 is an apocalyptic number.

It is an amenable number.

16315249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16315249 is an equidigital number, since it uses as much as digits as its factorization.

16315249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 16315249 is about 4039.2139086708. The cubic root of 16315249 is about 253.6284117428.

The spelling of 16315249 in words is "sixteen million, three hundred fifteen thousand, two hundred forty-nine".