1942351193 has 2 divisors, whose sum is σ = 1942351194. Its totient is φ = 1942351192.

The previous prime is 1942351139. The next prime is 1942351199. The reversal of 1942351193 is 3911532491.

Together with previous prime (1942351139) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1935736009 + 6615184 = 43997^2 + 2572^2 .

It is an emirp because it is prime and its reverse (3911532491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1942351193 - 2⁸ = 1942350937 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 (1942351199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971175596 + 971175597.

It is an arithmetic number, because the mean of its divisors is an integer number (971175597).

Almost surely, 2^1942351193 is an apocalyptic number.

It is an amenable number.

1942351193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942351193 is an equidigital number, since it uses as much as digits as its factorization.

1942351193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 38.

The square root of 1942351193 is about 44072.1135526764. The cubic root of 1942351193 is about 1247.6973486821.

The spelling of 1942351193 in words is "one billion, nine hundred forty-two million, three hundred fifty-one thousand, one hundred ninety-three".