264211457 has 4 divisors (see below), whose sum is σ = 265463856. Its totient is φ = 262959060.

The previous prime is 264211417. The next prime is 264211459. The reversal of 264211457 is 754112462.

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 264211457 - 2¹⁴ = 264195073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264211459) 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, 625883 + ... + 626304.

It is an arithmetic number, because the mean of its divisors is an integer number (66365964).

Almost surely, 2^264211457 is an apocalyptic number.

It is an amenable number.

264211457 is a deficient number, since it is larger than the sum of its proper divisors (1252399).

264211457 is a wasteful number, since it uses less digits than its factorization.

264211457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252398.

The product of its digits is 13440, while the sum is 32.

The square root of 264211457 is about 16254.5826461340. The cubic root of 264211457 is about 641.6780969535.

The spelling of 264211457 in words is "two hundred sixty-four million, two hundred eleven thousand, four hundred fifty-seven".