1516645099 has 2 divisors, whose sum is σ = 1516645100. Its totient is φ = 1516645098.

The previous prime is 1516645087. The next prime is 1516645159. The reversal of 1516645099 is 9905466151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1516645099 - 2¹⁹ = 1516120811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1516645079) 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, 758322549 + 758322550.

It is an arithmetic number, because the mean of its divisors is an integer number (758322550).

Almost surely, 2^1516645099 is an apocalyptic number.

1516645099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1516645099 is an equidigital number, since it uses as much as digits as its factorization.

1516645099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 46.

The square root of 1516645099 is about 38944.1279142312. The cubic root of 1516645099 is about 1148.9328724610.

The spelling of 1516645099 in words is "one billion, five hundred sixteen million, six hundred forty-five thousand, ninety-nine".