265032161 has 2 divisors, whose sum is σ = 265032162. Its totient is φ = 265032160.

The previous prime is 265032143. The next prime is 265032167. The reversal of 265032161 is 161230562.

265032161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248377600 + 16654561 = 15760^2 + 4081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265032161 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265032161.

It is not a weakly prime, because it can be changed into another prime (265032167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132516080 + 132516081.

It is an arithmetic number, because the mean of its divisors is an integer number (132516081).

Almost surely, 2^265032161 is an apocalyptic number.

It is an amenable number.

265032161 is a deficient number, since it is larger than the sum of its proper divisors (1).

265032161 is an equidigital number, since it uses as much as digits as its factorization.

265032161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 265032161 is about 16279.8083833932. The cubic root of 265032161 is about 642.3418121062.

The spelling of 265032161 in words is "two hundred sixty-five million, thirty-two thousand, one hundred sixty-one".