191296707241 has 2 divisors, whose sum is σ = 191296707242. Its totient is φ = 191296707240.

The previous prime is 191296707233. The next prime is 191296707293. The reversal of 191296707241 is 142707692191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98574021225 + 92722686016 = 313965^2 + 304504^2 .

It is an emirp because it is prime and its reverse (142707692191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 191296707241 - 2³ = 191296707233 is a prime.

It is not a weakly prime, because it can be changed into another prime (191296707941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95648353620 + 95648353621.

It is an arithmetic number, because the mean of its divisors is an integer number (95648353621).

Almost surely, 2^191296707241 is an apocalyptic number.

It is an amenable number.

191296707241 is a deficient number, since it is larger than the sum of its proper divisors (1).

191296707241 is an equidigital number, since it uses as much as digits as its factorization.

191296707241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 191296707241 in words is "one hundred ninety-one billion, two hundred ninety-six million, seven hundred seven thousand, two hundred forty-one".