16165287 has 6 divisors (see below), whose sum is σ = 23349872. Its totient is φ = 10776852.

The previous prime is 16165273. The next prime is 16165319. The reversal of 16165287 is 78256161.

It is not a de Polignac number, because 16165287 - 2⁸ = 16165031 is a prime.

It is a super-2 number, since 2×16165287² = 522633007584738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 898063 + ... + 898080.

Almost surely, 2^16165287 is an apocalyptic number.

16165287 is a deficient number, since it is larger than the sum of its proper divisors (7184585).

16165287 is a wasteful number, since it uses less digits than its factorization.

16165287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796149 (or 1796146 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 16165287 is about 4020.6077898746. The cubic root of 16165287 is about 252.8489414721.

It can be divided in two parts, 1616 and 5287, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 16165287 in words is "sixteen million, one hundred sixty-five thousand, two hundred eighty-seven".