135145141 has 2 divisors, whose sum is σ = 135145142. Its totient is φ = 135145140.

The previous prime is 135145139. The next prime is 135145159. The reversal of 135145141 is 141541531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119574225 + 15570916 = 10935^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 135145141 - 2¹ = 135145139 is a prime.

Together with 135145139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135145111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67572570 + 67572571.

It is an arithmetic number, because the mean of its divisors is an integer number (67572571).

Almost surely, 2^135145141 is an apocalyptic number.

It is an amenable number.

135145141 is a deficient number, since it is larger than the sum of its proper divisors (1).

135145141 is an equidigital number, since it uses as much as digits as its factorization.

135145141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 135145141 is about 11625.1942349365. The cubic root of 135145141 is about 513.1765608388.

Adding to 135145141 its reverse (141541531), we get a palindrome (276686672).

The spelling of 135145141 in words is "one hundred thirty-five million, one hundred forty-five thousand, one hundred forty-one".