245777713 has 4 divisors (see below), whose sum is σ = 246109248. Its totient is φ = 245446180.

The previous prime is 245777681. The next prime is 245777737. The reversal of 245777713 is 317777542.

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.

It is a cyclic number.

It is not a de Polignac number, because 245777713 - 2⁵ = 245777681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245777713.

It is not an unprimeable number, because it can be changed into a prime (245777773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164653 + ... + 166138.

It is an arithmetic number, because the mean of its divisors is an integer number (61527312).

Almost surely, 2^245777713 is an apocalyptic number.

It is an amenable number.

245777713 is a deficient number, since it is larger than the sum of its proper divisors (331535).

245777713 is an equidigital number, since it uses as much as digits as its factorization.

245777713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331534.

The product of its digits is 288120, while the sum is 43.

The square root of 245777713 is about 15677.2992890995. The cubic root of 245777713 is about 626.3938708476.

The spelling of 245777713 in words is "two hundred forty-five million, seven hundred seventy-seven thousand, seven hundred thirteen".