165256834 has 4 divisors (see below), whose sum is σ = 247885254. Its totient is φ = 82628416.

The previous prime is 165256811. The next prime is 165256849. The reversal of 165256834 is 438652561.

165256834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 80156209 = 9225^2 + 8953^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41314207 + ... + 41314210.

Almost surely, 2^165256834 is an apocalyptic number.

165256834 is a deficient number, since it is larger than the sum of its proper divisors (82628420).

165256834 is an equidigital number, since it uses as much as digits as its factorization.

165256834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82628419.

The product of its digits is 172800, while the sum is 40.

The square root of 165256834 is about 12855.2259412272. The cubic root of 165256834 is about 548.7650905023.

The spelling of 165256834 in words is "one hundred sixty-five million, two hundred fifty-six thousand, eight hundred thirty-four".