16955149 has 2 divisors, whose sum is σ = 16955150. Its totient is φ = 16955148.

The previous prime is 16955143. The next prime is 16955153. The reversal of 16955149 is 94155961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16752649 + 202500 = 4093^2 + 450^2 .

It is an emirp because it is prime and its reverse (94155961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16955149 - 2¹⁹ = 16430861 is a prime.

It is a super-2 number, since 2×16955149² = 574954155224402, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1088599 and since 16955149 and 1088599 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16955143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8477574 + 8477575.

It is an arithmetic number, because the mean of its divisors is an integer number (8477575).

Almost surely, 2^16955149 is an apocalyptic number.

It is an amenable number.

16955149 is a deficient number, since it is larger than the sum of its proper divisors (1).

16955149 is an equidigital number, since it uses as much as digits as its factorization.

16955149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 40.

The square root of 16955149 is about 4117.6630508093. The cubic root of 16955149 is about 256.9018333412.

The spelling of 16955149 in words is "sixteen million, nine hundred fifty-five thousand, one hundred forty-nine".