165155259 has 16 divisors (see below), whose sum is σ = 228184064. Its totient is φ = 106142400.

The previous prime is 165155233. The next prime is 165155269. The reversal of 165155259 is 952551561.

165155259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165155259 - 2¹¹ = 165153211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165155269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21927 + ... + 28479.

It is an arithmetic number, because the mean of its divisors is an integer number (14261504).

Almost surely, 2^165155259 is an apocalyptic number.

165155259 is a deficient number, since it is larger than the sum of its proper divisors (63028805).

165155259 is a wasteful number, since it uses less digits than its factorization.

165155259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6858.

The product of its digits is 67500, while the sum is 39.

The square root of 165155259 is about 12851.2746060459. The cubic root of 165155259 is about 548.6526347630.

The spelling of 165155259 in words is "one hundred sixty-five million, one hundred fifty-five thousand, two hundred fifty-nine".