193141791442 has 8 divisors (see below), whose sum is σ = 289851378300. Its totient is φ = 96524665344.

The previous prime is 193141791307. The next prime is 193141791443. The reversal of 193141791442 is 244197141391.

It is a Cunningham number, because it is equal to 439479²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 193141791441 + 1 = 439479^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 193141791392 and 193141791401.

It is not an unprimeable number, because it can be changed into a prime (193141791443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23109967 + ... + 23118322.

Almost surely, 2^193141791442 is an apocalyptic number.

193141791442 is a deficient number, since it is larger than the sum of its proper divisors (96709586858).

193141791442 is a wasteful number, since it uses less digits than its factorization.

193141791442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46230380.

The product of its digits is 217728, while the sum is 46.

The spelling of 193141791442 in words is "one hundred ninety-three billion, one hundred forty-one million, seven hundred ninety-one thousand, four hundred forty-two".