1940593117 has 2 divisors, whose sum is σ = 1940593118. Its totient is φ = 1940593116.

The previous prime is 1940593097. The next prime is 1940593141. The reversal of 1940593117 is 7113950491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157768676 + 782824441 = 34026^2 + 27979^2 .

It is an emirp because it is prime and its reverse (7113950491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1940593117 - 2²³ = 1932204509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1940593117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940593157) 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, 970296558 + 970296559.

It is an arithmetic number, because the mean of its divisors is an integer number (970296559).

Almost surely, 2^1940593117 is an apocalyptic number.

It is an amenable number.

1940593117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940593117 is an equidigital number, since it uses as much as digits as its factorization.

1940593117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1940593117 is about 44052.1635904526. The cubic root of 1940593117 is about 1247.3207932102.

The spelling of 1940593117 in words is "one billion, nine hundred forty million, five hundred ninety-three thousand, one hundred seventeen".