161575255 has 16 divisors (see below), whose sum is σ = 202146048. Its totient is φ = 123840000.

The previous prime is 161575231. The next prime is 161575277. The reversal of 161575255 is 552575161.

161575255 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 161575255 - 2⁵ = 161575223 is a prime.

It is a super-2 number, since 2×161575255² = 52213126056630050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10495 + ... + 20815.

It is an arithmetic number, because the mean of its divisors is an integer number (12634128).

Almost surely, 2^161575255 is an apocalyptic number.

161575255 is a deficient number, since it is larger than the sum of its proper divisors (40570793).

161575255 is a wasteful number, since it uses less digits than its factorization.

161575255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458.

The product of its digits is 52500, while the sum is 37.

The square root of 161575255 is about 12711.2255506698. The cubic root of 161575255 is about 544.6593331554.

It can be divided in two parts, 16157 and 5255, that added together give a palindrome (21412).

The spelling of 161575255 in words is "one hundred sixty-one million, five hundred seventy-five thousand, two hundred fifty-five".