245054209 has 2 divisors, whose sum is σ = 245054210. Its totient is φ = 245054208.

The previous prime is 245054203. The next prime is 245054221. The reversal of 245054209 is 902450542.

245054209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133287025 + 111767184 = 11545^2 + 10572^2 .

It is a cyclic number.

It is not a de Polignac number, because 245054209 - 2⁵ = 245054177 is a prime.

It is not a weakly prime, because it can be changed into another prime (245054203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122527104 + 122527105.

It is an arithmetic number, because the mean of its divisors is an integer number (122527105).

Almost surely, 2^245054209 is an apocalyptic number.

It is an amenable number.

245054209 is a deficient number, since it is larger than the sum of its proper divisors (1).

245054209 is an equidigital number, since it uses as much as digits as its factorization.

245054209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 245054209 is about 15654.2073897084. The cubic root of 245054209 is about 625.7786212754.

The spelling of 245054209 in words is "two hundred forty-five million, fifty-four thousand, two hundred nine".