115445120309947 has 2 divisors, whose sum is σ = 115445120309948. Its totient is φ = 115445120309946.

The previous prime is 115445120309923. The next prime is 115445120309963. The reversal of 115445120309947 is 749903021544511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115445120309947 - 2⁷ = 115445120309819 is a prime.

It is not a weakly prime, because it can be changed into another prime (115445120309647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57722560154973 + 57722560154974.

It is an arithmetic number, because the mean of its divisors is an integer number (57722560154974).

Almost surely, 2^{115445120309947} is an apocalyptic number.

115445120309947 is a deficient number, since it is larger than the sum of its proper divisors (1).

115445120309947 is an equidigital number, since it uses as much as digits as its factorization.

115445120309947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 115445120309947 in words is "one hundred fifteen trillion, four hundred forty-five billion, one hundred twenty million, three hundred nine thousand, nine hundred forty-seven".