16495019 has 2 divisors, whose sum is σ = 16495020. Its totient is φ = 16495018.

The previous prime is 16495001. The next prime is 16495033. The reversal of 16495019 is 91059461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16495019 is a prime.

It is a super-2 number, since 2×16495019² = 544171303620722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16495019.

It is not a weakly prime, because it can be changed into another prime (16495319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247509 + 8247510.

It is an arithmetic number, because the mean of its divisors is an integer number (8247510).

Almost surely, 2^16495019 is an apocalyptic number.

16495019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16495019 is an equidigital number, since it uses as much as digits as its factorization.

16495019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 16495019 is about 4061.4060373225. The cubic root of 16495019 is about 254.5565482526.

The spelling of 16495019 in words is "sixteen million, four hundred ninety-five thousand, nineteen".