16945099 has 2 divisors, whose sum is σ = 16945100. Its totient is φ = 16945098.

The previous prime is 16945091. The next prime is 16945121. The reversal of 16945099 is 99054961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16945099 - 2³ = 16945091 is a prime.

It is not a weakly prime, because it can be changed into another prime (16945091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8472549 + 8472550.

It is an arithmetic number, because the mean of its divisors is an integer number (8472550).

Almost surely, 2^16945099 is an apocalyptic number.

16945099 is a deficient number, since it is larger than the sum of its proper divisors (1).

16945099 is an equidigital number, since it uses as much as digits as its factorization.

16945099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 16945099 is about 4116.4425175144. The cubic root of 16945099 is about 256.8510646196.

The spelling of 16945099 in words is "sixteen million, nine hundred forty-five thousand, ninety-nine".