245285773 has 2 divisors, whose sum is σ = 245285774. Its totient is φ = 245285772.

The previous prime is 245285771. The next prime is 245285779. The reversal of 245285773 is 377582542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 96884649 = 12182^2 + 9843^2 .

It is a cyclic number.

It is not a de Polignac number, because 245285773 - 2¹ = 245285771 is a prime.

It is a super-2 number, since 2×245285773² = 120330220872415058, which contains 22 as substring.

Together with 245285771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245285771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122642886 + 122642887.

It is an arithmetic number, because the mean of its divisors is an integer number (122642887).

Almost surely, 2^245285773 is an apocalyptic number.

It is an amenable number.

245285773 is a deficient number, since it is larger than the sum of its proper divisors (1).

245285773 is an equidigital number, since it uses as much as digits as its factorization.

245285773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 43.

The square root of 245285773 is about 15661.6018657097. The cubic root of 245285773 is about 625.9756690792.

The spelling of 245285773 in words is "two hundred forty-five million, two hundred eighty-five thousand, seven hundred seventy-three".