275436161 has 16 divisors (see below), whose sum is σ = 369817728. Its totient is φ = 198115200.

The previous prime is 275436151. The next prime is 275436163. The reversal of 275436161 is 161634572.

It is a cyclic number.

It is not a de Polignac number, because 275436161 - 2⁶ = 275436097 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275436163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136580 + ... + 138581.

It is an arithmetic number, because the mean of its divisors is an integer number (23113608).

Almost surely, 2^275436161 is an apocalyptic number.

It is an amenable number.

275436161 is a deficient number, since it is larger than the sum of its proper divisors (94381567).

275436161 is a wasteful number, since it uses less digits than its factorization.

275436161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275192.

The product of its digits is 30240, while the sum is 35.

The square root of 275436161 is about 16596.2694904608. The cubic root of 275436161 is about 650.6393401694.

The spelling of 275436161 in words is "two hundred seventy-five million, four hundred thirty-six thousand, one hundred sixty-one".