245744965 has 4 divisors (see below), whose sum is σ = 294893964. Its totient is φ = 196595968.

The previous prime is 245744963. The next prime is 245744981. The reversal of 245744965 is 569447542.

245744965 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.

It can be written as a sum of positive squares in 2 ways, for example, as 143209089 + 102535876 = 11967^2 + 10126^2 .

It is a cyclic number.

It is not a de Polignac number, because 245744965 - 2¹ = 245744963 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 (245744963) 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, 24574492 + ... + 24574501.

It is an arithmetic number, because the mean of its divisors is an integer number (73723491).

Almost surely, 2^245744965 is an apocalyptic number.

It is an amenable number.

245744965 is a deficient number, since it is larger than the sum of its proper divisors (49148999).

245744965 is an equidigital number, since it uses as much as digits as its factorization.

245744965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49148998.

The product of its digits is 1209600, while the sum is 46.

The square root of 245744965 is about 15676.2548142087. The cubic root of 245744965 is about 626.3660488814.

The spelling of 245744965 in words is "two hundred forty-five million, seven hundred forty-four thousand, nine hundred sixty-five".