16612513 has 2 divisors, whose sum is σ = 16612514. Its totient is φ = 16612512.

The previous prime is 16612501. The next prime is 16612529. The reversal of 16612513 is 31521661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16581184 + 31329 = 4072^2 + 177^2 .

It is a cyclic number.

It is not a de Polignac number, because 16612513 - 2⁵ = 16612481 is a prime.

It is not a weakly prime, because it can be changed into another prime (16612613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306256 + 8306257.

It is an arithmetic number, because the mean of its divisors is an integer number (8306257).

Almost surely, 2^16612513 is an apocalyptic number.

It is an amenable number.

16612513 is a deficient number, since it is larger than the sum of its proper divisors (1).

16612513 is an equidigital number, since it uses as much as digits as its factorization.

16612513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 16612513 is about 4075.8450657502. The cubic root of 16612513 is about 255.1595208461.

The spelling of 16612513 in words is "sixteen million, six hundred twelve thousand, five hundred thirteen".