264865001 has 4 divisors (see below), whose sum is σ = 265587072. Its totient is φ = 264142932.

The previous prime is 264864991. The next prime is 264865019. The reversal of 264865001 is 100568462.

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 a de Polignac number, because none of the positive numbers 2^k-264865001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264865021) 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, 360485 + ... + 361218.

It is an arithmetic number, because the mean of its divisors is an integer number (66396768).

Almost surely, 2^264865001 is an apocalyptic number.

It is an amenable number.

264865001 is a deficient number, since it is larger than the sum of its proper divisors (722071).

264865001 is an equidigital number, since it uses as much as digits as its factorization.

264865001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722070.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 264865001 is about 16274.6736065581. The cubic root of 264865001 is about 642.2067386382.

The spelling of 264865001 in words is "two hundred sixty-four million, eight hundred sixty-five thousand, one".