264545 has 8 divisors (see below), whose sum is σ = 320424. Its totient is φ = 209664.

The previous prime is 264529. The next prime is 264553. The reversal of 264545 is 545462.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 262144 = 49^2 + 512^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 264545 - 2⁴ = 264529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (40053).

2²⁶⁴⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

264545 is a deficient number, since it is larger than the sum of its proper divisors (55879).

264545 is a wasteful number, since it uses less digits than its factorization.

264545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

The product of its digits is 4800, while the sum is 26.

The square root of 264545 is about 514.3393821204. The cubic root of 264545 is about 64.1948003540.

It can be divided in two parts, 2645 and 45, that multiplied together give a square (119025 = 345²).

The spelling of 264545 in words is "two hundred sixty-four thousand, five hundred forty-five".