135523195189 has 2 divisors, whose sum is σ = 135523195190. Its totient is φ = 135523195188.

The previous prime is 135523195141. The next prime is 135523195201. The reversal of 135523195189 is 981591325531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99766276164 + 35756919025 = 315858^2 + 189095^2 .

It is a cyclic number.

It is not a de Polignac number, because 135523195189 - 2⁷ = 135523195061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135520195189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67761597594 + 67761597595.

It is an arithmetic number, because the mean of its divisors is an integer number (67761597595).

Almost surely, 2^135523195189 is an apocalyptic number.

It is an amenable number.

135523195189 is a deficient number, since it is larger than the sum of its proper divisors (1).

135523195189 is an equidigital number, since it uses as much as digits as its factorization.

135523195189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458000, while the sum is 52.

The spelling of 135523195189 in words is "one hundred thirty-five billion, five hundred twenty-three million, one hundred ninety-five thousand, one hundred eighty-nine".