264465613 has 4 divisors (see below), whose sum is σ = 266240700. Its totient is φ = 262690528.

The previous prime is 264465589. The next prime is 264465623. The reversal of 264465613 is 316564462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 316564462 = 2 ⋅158282231.

It can be written as a sum of positive squares in 2 ways, for example, as 93954249 + 170511364 = 9693^2 + 13058^2 .

It is a cyclic number.

It is not a de Polignac number, because 264465613 - 2⁹ = 264465101 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 (264465623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887320 + ... + 887617.

It is an arithmetic number, because the mean of its divisors is an integer number (66560175).

Almost surely, 2^264465613 is an apocalyptic number.

It is an amenable number.

264465613 is a deficient number, since it is larger than the sum of its proper divisors (1775087).

264465613 is a wasteful number, since it uses less digits than its factorization.

264465613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775086.

The product of its digits is 103680, while the sum is 37.

The square root of 264465613 is about 16262.3987468024. The cubic root of 264465613 is about 641.8837833066.

The spelling of 264465613 in words is "two hundred sixty-four million, four hundred sixty-five thousand, six hundred thirteen".