264197 has 4 divisors (see below), whose sum is σ = 279756. Its totient is φ = 248640.

The previous prime is 264179. The next prime is 264211. The reversal of 264197 is 791462.

It is a Cunningham number, because it is equal to 514²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206116 + 58081 = 454^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 264197 - 2⁶ = 264133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264127) 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, 7754 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (69939).

2²⁶⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

264197 is a deficient number, since it is larger than the sum of its proper divisors (15559).

264197 is a wasteful number, since it uses less digits than its factorization.

264197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15558.

The product of its digits is 3024, while the sum is 29.

The square root of 264197 is about 514.0009727617. Note that the first 3 decimals coincide. The cubic root of 264197 is about 64.1666393058.

The spelling of 264197 in words is "two hundred sixty-four thousand, one hundred ninety-seven".