264519923 has 4 divisors (see below), whose sum is σ = 264650208. Its totient is φ = 264389640.

The previous prime is 264519917. The next prime is 264519947. The reversal of 264519923 is 329915462.

264519923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329915462 = 2 ⋅164957731.

It is a cyclic number.

It is not a de Polignac number, because 264519923 - 2⁴ = 264519907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264519323) 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, 62048 + ... + 66173.

It is an arithmetic number, because the mean of its divisors is an integer number (66162552).

Almost surely, 2^264519923 is an apocalyptic number.

264519923 is a deficient number, since it is larger than the sum of its proper divisors (130285).

264519923 is a wasteful number, since it uses less digits than its factorization.

264519923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130284.

The product of its digits is 116640, while the sum is 41.

The square root of 264519923 is about 16264.0684639484. The cubic root of 264519923 is about 641.9277188513.

The spelling of 264519923 in words is "two hundred sixty-four million, five hundred nineteen thousand, nine hundred twenty-three".