255225134161 has 2 divisors, whose sum is σ = 255225134162. Its totient is φ = 255225134160.

The previous prime is 255225134119. The next prime is 255225134261. The reversal of 255225134161 is 161431522552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161616060225 + 93609073936 = 402015^2 + 305956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255225134161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255225134161.

It is not a weakly prime, because it can be changed into another prime (255225134261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127612567080 + 127612567081.

It is an arithmetic number, because the mean of its divisors is an integer number (127612567081).

Almost surely, 2^255225134161 is an apocalyptic number.

It is an amenable number.

255225134161 is a deficient number, since it is larger than the sum of its proper divisors (1).

255225134161 is an equidigital number, since it uses as much as digits as its factorization.

255225134161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

The spelling of 255225134161 in words is "two hundred fifty-five billion, two hundred twenty-five million, one hundred thirty-four thousand, one hundred sixty-one".