264211331 has 4 divisors (see below), whose sum is σ = 279753192. Its totient is φ = 248669472.

The previous prime is 264211319. The next prime is 264211361. The reversal of 264211331 is 133112462.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 264211331 - 2⁶ = 264211267 is a prime.

It is a super-2 number, since 2×264211331² = 139615254857583122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264211297 and 264211306.

It is not an unprimeable number, because it can be changed into a prime (264211301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7770905 + ... + 7770938.

It is an arithmetic number, because the mean of its divisors is an integer number (69938298).

Almost surely, 2^264211331 is an apocalyptic number.

264211331 is a deficient number, since it is larger than the sum of its proper divisors (15541861).

264211331 is a wasteful number, since it uses less digits than its factorization.

264211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15541860.

The product of its digits is 864, while the sum is 23.

The square root of 264211331 is about 16254.5787703035. The cubic root of 264211331 is about 641.6779949500.

Adding to 264211331 its reverse (133112462), we get a palindrome (397323793).

The spelling of 264211331 in words is "two hundred sixty-four million, two hundred eleven thousand, three hundred thirty-one".