264384157 has 2 divisors, whose sum is σ = 264384158. Its totient is φ = 264384156.

The previous prime is 264384137. The next prime is 264384161. The reversal of 264384157 is 751483462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167676601 + 96707556 = 12949^2 + 9834^2 .

It is a cyclic number.

It is not a de Polignac number, because 264384157 - 2¹¹ = 264382109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264384137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132192078 + 132192079.

It is an arithmetic number, because the mean of its divisors is an integer number (132192079).

Almost surely, 2^264384157 is an apocalyptic number.

It is an amenable number.

264384157 is a deficient number, since it is larger than the sum of its proper divisors (1).

264384157 is an equidigital number, since it uses as much as digits as its factorization.

264384157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 40.

The square root of 264384157 is about 16259.8941263466. The cubic root of 264384157 is about 641.8178759929.

The spelling of 264384157 in words is "two hundred sixty-four million, three hundred eighty-four thousand, one hundred fifty-seven".