16115797 has 2 divisors, whose sum is σ = 16115798. Its totient is φ = 16115796.

The previous prime is 16115767. The next prime is 16115807. The reversal of 16115797 is 79751161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15046641 + 1069156 = 3879^2 + 1034^2 .

It is a cyclic number.

It is not a de Polignac number, because 16115797 - 2²³ = 7727189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16115707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8057898 + 8057899.

It is an arithmetic number, because the mean of its divisors is an integer number (8057899).

Almost surely, 2^16115797 is an apocalyptic number.

It is an amenable number.

16115797 is a deficient number, since it is larger than the sum of its proper divisors (1).

16115797 is an equidigital number, since it uses as much as digits as its factorization.

16115797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 37.

The square root of 16115797 is about 4014.4485299976. The cubic root of 16115797 is about 252.5906454932.

The spelling of 16115797 in words is "sixteen million, one hundred fifteen thousand, seven hundred ninety-seven".