245450515339 has 2 divisors, whose sum is σ = 245450515340. Its totient is φ = 245450515338.

The previous prime is 245450515327. The next prime is 245450515361. The reversal of 245450515339 is 933515054542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245450515339 - 2¹⁹ = 245449991051 is a prime.

It is not a weakly prime, because it can be changed into another prime (245450515379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122725257669 + 122725257670.

It is an arithmetic number, because the mean of its divisors is an integer number (122725257670).

Almost surely, 2^245450515339 is an apocalyptic number.

245450515339 is a deficient number, since it is larger than the sum of its proper divisors (1).

245450515339 is an equidigital number, since it uses as much as digits as its factorization.

245450515339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 46.

The spelling of 245450515339 in words is "two hundred forty-five billion, four hundred fifty million, five hundred fifteen thousand, three hundred thirty-nine".