264247013 has 4 divisors (see below), whose sum is σ = 264335808. Its totient is φ = 264158220.

The previous prime is 264246991. The next prime is 264247033. The reversal of 264247013 is 310742462.

264247013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310742462 = 2 ⋅155371231.

It is a cyclic number.

It is not a de Polignac number, because 264247013 - 2⁶ = 264246949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264247033) 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, 39773 + ... + 45938.

It is an arithmetic number, because the mean of its divisors is an integer number (66083952).

Almost surely, 2^264247013 is an apocalyptic number.

It is an amenable number.

264247013 is a deficient number, since it is larger than the sum of its proper divisors (88795).

264247013 is an equidigital number, since it uses as much as digits as its factorization.

264247013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88794.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 264247013 is about 16255.6763316695. The cubic root of 264247013 is about 641.7068800644.

Adding to 264247013 its reverse (310742462), we get a palindrome (574989475).

The spelling of 264247013 in words is "two hundred sixty-four million, two hundred forty-seven thousand, thirteen".