265330133 has 4 divisors (see below), whose sum is σ = 266719488. Its totient is φ = 263940780.

The previous prime is 265330129. The next prime is 265330183. The reversal of 265330133 is 331033562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 265330133 - 2² = 265330129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265330123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694391 + ... + 694772.

It is an arithmetic number, because the mean of its divisors is an integer number (66679872).

Almost surely, 2^265330133 is an apocalyptic number.

It is an amenable number.

265330133 is a deficient number, since it is larger than the sum of its proper divisors (1389355).

265330133 is a wasteful number, since it uses less digits than its factorization.

265330133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389354.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 265330133 is about 16288.9573945050. The cubic root of 265330133 is about 642.5824472919.

Adding to 265330133 its reverse (331033562), we get a palindrome (596363695).

The spelling of 265330133 in words is "two hundred sixty-five million, three hundred thirty thousand, one hundred thirty-three".