264613231 has 4 divisors (see below), whose sum is σ = 265019112. Its totient is φ = 264207352.

The previous prime is 264613189. The next prime is 264613249. The reversal of 264613231 is 132316462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132316462 = 2 ⋅66158231.

It is a cyclic number.

It is not a de Polignac number, because 264613231 - 2¹¹ = 264611183 is a prime.

It is a super-2 number, since 2×264613231² = 140040324040518722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264613231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264613291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201961 + ... + 203266.

It is an arithmetic number, because the mean of its divisors is an integer number (66254778).

Almost surely, 2^264613231 is an apocalyptic number.

264613231 is a deficient number, since it is larger than the sum of its proper divisors (405881).

264613231 is an equidigital number, since it uses as much as digits as its factorization.

264613231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405880.

The product of its digits is 5184, while the sum is 28.

The square root of 264613231 is about 16266.9367429765. The cubic root of 264613231 is about 642.0031888443.

Adding to 264613231 its reverse (132316462), we get a palindrome (396929693).

It can be divided in two parts, 26461 and 3231, that added together give a palindrome (29692).

The spelling of 264613231 in words is "two hundred sixty-four million, six hundred thirteen thousand, two hundred thirty-one".