264001 has 4 divisors (see below), whose sum is σ = 265392. Its totient is φ = 262612.

The previous prime is 263983. The next prime is 264007. The reversal of 264001 is 100462.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100462 = 2 ⋅50231.

It is a cyclic number.

It is not a de Polignac number, because 264001 - 2⁹ = 263489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264007) 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, 355 + ... + 808.

It is an arithmetic number, because the mean of its divisors is an integer number (66348).

2²⁶⁴⁰⁰¹ is an apocalyptic number.

It is an amenable number.

264001 is a deficient number, since it is larger than the sum of its proper divisors (1391).

264001 is a wasteful number, since it uses less digits than its factorization.

264001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 264001 is about 513.8102762694. The cubic root of 264001 is about 64.1507675982.

Adding to 264001 its reverse (100462), we get a palindrome (364463).

The spelling of 264001 in words is "two hundred sixty-four thousand, one".