264431523 has 8 divisors (see below), whose sum is σ = 358355536. Its totient is φ = 173397600.

The previous prime is 264431501. The next prime is 264431527. The reversal of 264431523 is 325134462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264431523 - 2¹⁴ = 264415139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264431527) 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 7 ways as a sum of consecutive naturals, for example, 722308 + ... + 722673.

It is an arithmetic number, because the mean of its divisors is an integer number (44794442).

Almost surely, 2^264431523 is an apocalyptic number.

264431523 is a deficient number, since it is larger than the sum of its proper divisors (93924013).

264431523 is a wasteful number, since it uses less digits than its factorization.

264431523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445045.

The product of its digits is 17280, while the sum is 30.

The square root of 264431523 is about 16261.3505896651. The cubic root of 264431523 is about 641.8562022055.

Adding to 264431523 its reverse (325134462), we get a palindrome (589565985).

It can be divided in two parts, 26443 and 1523, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 264431523 in words is "two hundred sixty-four million, four hundred thirty-one thousand, five hundred twenty-three".