264423109 has 2 divisors, whose sum is σ = 264423110. Its totient is φ = 264423108.

The previous prime is 264423097. The next prime is 264423113. The reversal of 264423109 is 901324462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257506209 + 6916900 = 16047^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 264423109 - 2⁹ = 264422597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264423119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132211554 + 132211555.

It is an arithmetic number, because the mean of its divisors is an integer number (132211555).

Almost surely, 2^264423109 is an apocalyptic number.

It is an amenable number.

264423109 is a deficient number, since it is larger than the sum of its proper divisors (1).

264423109 is an equidigital number, since it uses as much as digits as its factorization.

264423109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 264423109 is about 16261.0918760088. The cubic root of 264423109 is about 641.8493943493.

The spelling of 264423109 in words is "two hundred sixty-four million, four hundred twenty-three thousand, one hundred nine".