245779361 has 2 divisors, whose sum is σ = 245779362. Its totient is φ = 245779360.

The previous prime is 245779343. The next prime is 245779397. The reversal of 245779361 is 163977542.

245779361 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., 242393761 + 3385600 = 15569^2 + 1840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245779361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245779301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122889680 + 122889681.

It is an arithmetic number, because the mean of its divisors is an integer number (122889681).

Almost surely, 2^245779361 is an apocalyptic number.

It is an amenable number.

245779361 is a deficient number, since it is larger than the sum of its proper divisors (1).

245779361 is an equidigital number, since it uses as much as digits as its factorization.

245779361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 245779361 is about 15677.3518490847. The cubic root of 245779361 is about 626.3952708861.

It can be divided in two parts, 2457 and 79361, that added together give a palindrome (81818).

The spelling of 245779361 in words is "two hundred forty-five million, seven hundred seventy-nine thousand, three hundred sixty-one".