1200115193 has 2 divisors, whose sum is σ = 1200115194. Its totient is φ = 1200115192.

The previous prime is 1200115151. The next prime is 1200115211. The reversal of 1200115193 is 3915110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 625650169 + 574465024 = 25013^2 + 23968^2 .

It is an emirp because it is prime and its reverse (3915110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200115193 - 2¹⁰ = 1200114169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1200115393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600057596 + 600057597.

It is an arithmetic number, because the mean of its divisors is an integer number (600057597).

Almost surely, 2^1200115193 is an apocalyptic number.

It is an amenable number.

1200115193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200115193 is an equidigital number, since it uses as much as digits as its factorization.

1200115193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 1200115193 is about 34642.6787792168. The cubic root of 1200115193 is about 1062.6925711026.

The spelling of 1200115193 in words is "one billion, two hundred million, one hundred fifteen thousand, one hundred ninety-three".