264543241 has 4 divisors (see below), whose sum is σ = 264863952. Its totient is φ = 264222532.

The previous prime is 264543233. The next prime is 264543247. The reversal of 264543241 is 142345462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 264543241 - 2³ = 264543233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264543247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159115 + ... + 160768.

It is an arithmetic number, because the mean of its divisors is an integer number (66215988).

Almost surely, 2^264543241 is an apocalyptic number.

It is an amenable number.

264543241 is a deficient number, since it is larger than the sum of its proper divisors (320711).

264543241 is an equidigital number, since it uses as much as digits as its factorization.

264543241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320710.

The product of its digits is 23040, while the sum is 31.

The square root of 264543241 is about 16264.7853044545. The cubic root of 264543241 is about 641.9465807333.

The spelling of 264543241 in words is "two hundred sixty-four million, five hundred forty-three thousand, two hundred forty-one".