15716081 has 2 divisors, whose sum is σ = 15716082. Its totient is φ = 15716080.

The previous prime is 15716017. The next prime is 15716087. The reversal of 15716081 is 18061751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 2640625 = 3616^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 15716081 - 2⁶ = 15716017 is a prime.

It is a super-2 number, since 2×15716081² = 493990403997122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15716087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7858040 + 7858041.

It is an arithmetic number, because the mean of its divisors is an integer number (7858041).

Almost surely, 2^15716081 is an apocalyptic number.

It is an amenable number.

15716081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15716081 is an equidigital number, since it uses as much as digits as its factorization.

15716081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 15716081 is about 3964.3512710152. The cubic root of 15716081 is about 250.4848245063.

The spelling of 15716081 in words is "fifteen million, seven hundred sixteen thousand, eighty-one".