16612613 has 2 divisors, whose sum is σ = 16612614. Its totient is φ = 16612612.

The previous prime is 16612597. The next prime is 16612619. The reversal of 16612613 is 31621661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 6160324 = 3233^2 + 2482^2 .

It is an emirp because it is prime and its reverse (31621661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16612613 - 2⁴ = 16612597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16612619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306306 + 8306307.

It is an arithmetic number, because the mean of its divisors is an integer number (8306307).

Almost surely, 2^16612613 is an apocalyptic number.

It is an amenable number.

16612613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16612613 is an equidigital number, since it uses as much as digits as its factorization.

16612613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 16612613 is about 4075.8573331264. The cubic root of 16612613 is about 255.1600328277.

The spelling of 16612613 in words is "sixteen million, six hundred twelve thousand, six hundred thirteen".