291573981341 has 2 divisors, whose sum is σ = 291573981342. Its totient is φ = 291573981340.

The previous prime is 291573981233. The next prime is 291573981353. The reversal of 291573981341 is 143189375192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189946917241 + 101627064100 = 435829^2 + 318790^2 .

It is a cyclic number.

It is not a de Polignac number, because 291573981341 - 2²² = 291569787037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (291573984341) 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, 145786990670 + 145786990671.

It is an arithmetic number, because the mean of its divisors is an integer number (145786990671).

Almost surely, 2^291573981341 is an apocalyptic number.

It is an amenable number.

291573981341 is a deficient number, since it is larger than the sum of its proper divisors (1).

291573981341 is an equidigital number, since it uses as much as digits as its factorization.

291573981341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The spelling of 291573981341 in words is "two hundred ninety-one billion, five hundred seventy-three million, nine hundred eighty-one thousand, three hundred forty-one".