264215023 has 2 divisors, whose sum is σ = 264215024. Its totient is φ = 264215022.

The previous prime is 264215009. The next prime is 264215047. The reversal of 264215023 is 320512462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264215023 - 2¹⁷ = 264083951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264215093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132107511 + 132107512.

It is an arithmetic number, because the mean of its divisors is an integer number (132107512).

Almost surely, 2^264215023 is an apocalyptic number.

264215023 is a deficient number, since it is larger than the sum of its proper divisors (1).

264215023 is an equidigital number, since it uses as much as digits as its factorization.

264215023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 264215023 is about 16254.6923379066. The cubic root of 264215023 is about 641.6809838000.

Adding to 264215023 its reverse (320512462), we get a palindrome (584727485).

The spelling of 264215023 in words is "two hundred sixty-four million, two hundred fifteen thousand, twenty-three".