187455340841 has 2 divisors, whose sum is σ = 187455340842. Its totient is φ = 187455340840.

The previous prime is 187455340823. The next prime is 187455340843. The reversal of 187455340841 is 148043554781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118966357225 + 68488983616 = 344915^2 + 261704^2 .

It is a cyclic number.

It is not a de Polignac number, because 187455340841 - 2¹⁰ = 187455339817 is a prime.

Together with 187455340843, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187455340841.

It is not a weakly prime, because it can be changed into another prime (187455340843) 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, 93727670420 + 93727670421.

It is an arithmetic number, because the mean of its divisors is an integer number (93727670421).

Almost surely, 2^187455340841 is an apocalyptic number.

It is an amenable number.

187455340841 is a deficient number, since it is larger than the sum of its proper divisors (1).

187455340841 is an equidigital number, since it uses as much as digits as its factorization.

187455340841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 187455340841 in words is "one hundred eighty-seven billion, four hundred fifty-five million, three hundred forty thousand, eight hundred forty-one".