265116133 has 2 divisors, whose sum is σ = 265116134. Its totient is φ = 265116132.

The previous prime is 265116079. The next prime is 265116161. The reversal of 265116133 is 331611562.

It is an a-pointer prime, because the next prime (265116161) can be obtained adding 265116133 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217326564 + 47789569 = 14742^2 + 6913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265116133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265116233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132558066 + 132558067.

It is an arithmetic number, because the mean of its divisors is an integer number (132558067).

Almost surely, 2^265116133 is an apocalyptic number.

It is an amenable number.

265116133 is a deficient number, since it is larger than the sum of its proper divisors (1).

265116133 is an equidigital number, since it uses as much as digits as its factorization.

265116133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 265116133 is about 16282.3872021273. The cubic root of 265116133 is about 642.4096441646.

Adding to 265116133 its reverse (331611562), we get a palindrome (596727695).

The spelling of 265116133 in words is "two hundred sixty-five million, one hundred sixteen thousand, one hundred thirty-three".