16513207 has 2 divisors, whose sum is σ = 16513208. Its totient is φ = 16513206.

The previous prime is 16513199. The next prime is 16513213. The reversal of 16513207 is 70231561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16513207 - 2³ = 16513199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16513807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8256603 + 8256604.

It is an arithmetic number, because the mean of its divisors is an integer number (8256604).

Almost surely, 2^16513207 is an apocalyptic number.

16513207 is a deficient number, since it is larger than the sum of its proper divisors (1).

16513207 is an equidigital number, since it uses as much as digits as its factorization.

16513207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 16513207 is about 4063.6445464632. The cubic root of 16513207 is about 254.6500749480.

Adding to 16513207 its reverse (70231561), we get a palindrome (86744768).

The spelling of 16513207 in words is "sixteen million, five hundred thirteen thousand, two hundred seven".