193944293 has 2 divisors, whose sum is σ = 193944294. Its totient is φ = 193944292.

The previous prime is 193944263. The next prime is 193944323. The reversal of 193944293 is 392449391.

It is a balanced prime because it is at equal distance from previous prime (193944263) and next prime (193944323).

It can be written as a sum of positive squares in only one way, i.e., 174292804 + 19651489 = 13202^2 + 4433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193944293 is a prime.

It is a super-2 number, since 2×193944293² = 75228777574539698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (193944253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96972146 + 96972147.

It is an arithmetic number, because the mean of its divisors is an integer number (96972147).

Almost surely, 2^193944293 is an apocalyptic number.

It is an amenable number.

193944293 is a deficient number, since it is larger than the sum of its proper divisors (1).

193944293 is an equidigital number, since it uses as much as digits as its factorization.

193944293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 193944293 is about 13926.3883688485. The cubic root of 193944293 is about 578.8406220022.

It can be divided in two parts, 19 and 3944293, that added together give a cube (3944312 = 158³).

The spelling of 193944293 in words is "one hundred ninety-three million, nine hundred forty-four thousand, two hundred ninety-three".