245450515361 has 2 divisors, whose sum is σ = 245450515362. Its totient is φ = 245450515360.

The previous prime is 245450515339. The next prime is 245450515379. The reversal of 245450515361 is 163515054542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229219755361 + 16230760000 = 478769^2 + 127400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245450515361 is a prime.

It is not a weakly prime, because it can be changed into another prime (245450515061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122725257680 + 122725257681.

It is an arithmetic number, because the mean of its divisors is an integer number (122725257681).

Almost surely, 2^245450515361 is an apocalyptic number.

It is an amenable number.

245450515361 is a deficient number, since it is larger than the sum of its proper divisors (1).

245450515361 is an equidigital number, since it uses as much as digits as its factorization.

245450515361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 245450515361 in words is "two hundred forty-five billion, four hundred fifty million, five hundred fifteen thousand, three hundred sixty-one".