16630513 has 2 divisors, whose sum is σ = 16630514. Its totient is φ = 16630512.

The previous prime is 16630489. The next prime is 16630517. The reversal of 16630513 is 31503661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13126129 + 3504384 = 3623^2 + 1872^2 .

It is a cyclic number.

It is not a de Polignac number, because 16630513 - 2²¹ = 14533361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16630517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8315256 + 8315257.

It is an arithmetic number, because the mean of its divisors is an integer number (8315257).

Almost surely, 2^16630513 is an apocalyptic number.

It is an amenable number.

16630513 is a deficient number, since it is larger than the sum of its proper divisors (1).

16630513 is an equidigital number, since it uses as much as digits as its factorization.

16630513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 16630513 is about 4078.0525989742. The cubic root of 16630513 is about 255.2516444470.

The spelling of 16630513 in words is "sixteen million, six hundred thirty thousand, five hundred thirteen".