16078117 has 12 divisors (see below), whose sum is σ = 17883180. Its totient is φ = 14442560.

The previous prime is 16078037. The next prime is 16078129. The reversal of 16078117 is 71187061.

It can be written as a sum of positive squares in 2 ways, for example, as 8755681 + 7322436 = 2959^2 + 2706^2 .

It is not a de Polignac number, because 16078117 - 2¹⁹ = 15553829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16078147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10023 + ... + 11515.

It is an arithmetic number, because the mean of its divisors is an integer number (1490265).

Almost surely, 2^16078117 is an apocalyptic number.

It is an amenable number.

16078117 is a deficient number, since it is larger than the sum of its proper divisors (1805063).

16078117 is a wasteful number, since it uses less digits than its factorization.

16078117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 16078117 is about 4009.7527355187. The cubic root of 16078117 is about 252.3936329426.

The spelling of 16078117 in words is "sixteen million, seventy-eight thousand, one hundred seventeen".