135318877 has 4 divisors (see below), whose sum is σ = 135650140. Its totient is φ = 134987616.

The previous prime is 135318871. The next prime is 135318889. The reversal of 135318877 is 778813531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61685316 + 73633561 = 7854^2 + 8581^2 .

It is a cyclic number.

It is not a de Polignac number, because 135318877 - 2⁷ = 135318749 is a prime.

It is a super-2 number, since 2×135318877² = 36622396945082258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135318871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165018 + ... + 165835.

It is an arithmetic number, because the mean of its divisors is an integer number (33912535).

Almost surely, 2^135318877 is an apocalyptic number.

It is an amenable number.

135318877 is a deficient number, since it is larger than the sum of its proper divisors (331263).

135318877 is an equidigital number, since it uses as much as digits as its factorization.

135318877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331262.

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

The square root of 135318877 is about 11632.6642262209. The cubic root of 135318877 is about 513.3963715898.

The spelling of 135318877 in words is "one hundred thirty-five million, three hundred eighteen thousand, eight hundred seventy-seven".