135570625181 has 2 divisors, whose sum is σ = 135570625182. Its totient is φ = 135570625180.

The previous prime is 135570625103. The next prime is 135570625193. The reversal of 135570625181 is 181526075531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70209100900 + 65361524281 = 264970^2 + 255659^2 .

It is a cyclic number.

It is not a de Polignac number, because 135570625181 - 2¹⁸ = 135570363037 is a prime.

It is a super-2 number, since 2×135570625181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135570625681) 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, 67785312590 + 67785312591.

It is an arithmetic number, because the mean of its divisors is an integer number (67785312591).

Almost surely, 2^135570625181 is an apocalyptic number.

It is an amenable number.

135570625181 is a deficient number, since it is larger than the sum of its proper divisors (1).

135570625181 is an equidigital number, since it uses as much as digits as its factorization.

135570625181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 135570625181 in words is "one hundred thirty-five billion, five hundred seventy million, six hundred twenty-five thousand, one hundred eighty-one".