16495901 has 2 divisors, whose sum is σ = 16495902. Its totient is φ = 16495900.

The previous prime is 16495889. The next prime is 16495907. The reversal of 16495901 is 10959461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15288100 + 1207801 = 3910^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 16495901 - 2⁶ = 16495837 is a prime.

It is a super-3 number, since 3×16495901³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16495907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247950 + 8247951.

It is an arithmetic number, because the mean of its divisors is an integer number (8247951).

Almost surely, 2^16495901 is an apocalyptic number.

It is an amenable number.

16495901 is a deficient number, since it is larger than the sum of its proper divisors (1).

16495901 is an equidigital number, since it uses as much as digits as its factorization.

16495901 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 16495901 is about 4061.5146189568. The cubic root of 16495901 is about 254.5610852762.

The spelling of 16495901 in words is "sixteen million, four hundred ninety-five thousand, nine hundred one".