165895438 has 8 divisors (see below), whose sum is σ = 249835320. Its totient is φ = 82617000.

The previous prime is 165895427. The next prime is 165895447. The reversal of 165895438 is 834598561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 165895391 and 165895400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164733 + ... + 165736.

It is an arithmetic number, because the mean of its divisors is an integer number (31229415).

Almost surely, 2^165895438 is an apocalyptic number.

165895438 is a deficient number, since it is larger than the sum of its proper divisors (83939882).

165895438 is a wasteful number, since it uses less digits than its factorization.

165895438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330722.

The product of its digits is 1036800, while the sum is 49.

The square root of 165895438 is about 12880.0402949680. The cubic root of 165895438 is about 549.4710484793.

The spelling of 165895438 in words is "one hundred sixty-five million, eight hundred ninety-five thousand, four hundred thirty-eight".