135188377 has 2 divisors, whose sum is σ = 135188378. Its totient is φ = 135188376.

The previous prime is 135188327. The next prime is 135188387. The reversal of 135188377 is 773881531.

135188377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134073241 + 1115136 = 11579^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 135188377 - 2¹⁵ = 135155609 is a prime.

It is not a weakly prime, because it can be changed into another prime (135188327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67594188 + 67594189.

It is an arithmetic number, because the mean of its divisors is an integer number (67594189).

Almost surely, 2^135188377 is an apocalyptic number.

It is an amenable number.

135188377 is a deficient number, since it is larger than the sum of its proper divisors (1).

135188377 is an equidigital number, since it uses as much as digits as its factorization.

135188377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 43.

The square root of 135188377 is about 11627.0536680623. The cubic root of 135188377 is about 513.2312806161.

The spelling of 135188377 in words is "one hundred thirty-five million, one hundred eighty-eight thousand, three hundred seventy-seven".