255141150231581 has 2 divisors, whose sum is σ = 255141150231582. Its totient is φ = 255141150231580.

The previous prime is 255141150231563. The next prime is 255141150231587. The reversal of 255141150231581 is 185132051141552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215939351265625 + 39201798965956 = 14694875^2 + 6261134^2 .

It is a cyclic number.

It is not a de Polignac number, because 255141150231581 - 2³⁰ = 255140076489757 is a prime.

It is a super-2 number, since 2×255141150231581² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255141150231587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127570575115790 + 127570575115791.

It is an arithmetic number, because the mean of its divisors is an integer number (127570575115791).

Almost surely, 2^{255141150231581} is an apocalyptic number.

It is an amenable number.

255141150231581 is a deficient number, since it is larger than the sum of its proper divisors (1).

255141150231581 is an equidigital number, since it uses as much as digits as its factorization.

255141150231581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240000, while the sum is 44.

The spelling of 255141150231581 in words is "two hundred fifty-five trillion, one hundred forty-one billion, one hundred fifty million, two hundred thirty-one thousand, five hundred eighty-one".