264431133 has 12 divisors (see below), whose sum is σ = 385527168. Its totient is φ = 174639240.

The previous prime is 264431131. The next prime is 264431137. The reversal of 264431133 is 331134462.

264431133 is a `hidden beast` number, since 2 + 644 + 3 + 1 + 13 + 3 = 666.

It is not a de Polignac number, because 264431133 - 2¹ = 264431131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264431097 and 264431106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264431131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136333 + ... + 138258.

It is an arithmetic number, because the mean of its divisors is an integer number (32127264).

Almost surely, 2^264431133 is an apocalyptic number.

It is an amenable number.

264431133 is a deficient number, since it is larger than the sum of its proper divisors (121096035).

264431133 is a wasteful number, since it uses less digits than its factorization.

264431133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274704 (or 274701 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 264431133 is about 16261.3385980368. The cubic root of 264431133 is about 641.8558866556.

Adding to 264431133 its reverse (331134462), we get a palindrome (595565595).

The spelling of 264431133 in words is "two hundred sixty-four million, four hundred thirty-one thousand, one hundred thirty-three".