135918797 has 24 divisors (see below), whose sum is σ = 165179160. Its totient is φ = 111404160.

The previous prime is 135918793. The next prime is 135918803. The reversal of 135918797 is 797819531.

135918797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50282281 + 85636516 = 7091^2 + 9254^2 .

It is not a de Polignac number, because 135918797 - 2² = 135918793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135918793) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109979 + ... + 111207.

It is an arithmetic number, because the mean of its divisors is an integer number (6882465).

Almost surely, 2^135918797 is an apocalyptic number.

It is an amenable number.

135918797 is a deficient number, since it is larger than the sum of its proper divisors (29260363).

135918797 is a wasteful number, since it uses less digits than its factorization.

135918797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1334 counting only the distinct ones).

The product of its digits is 476280, while the sum is 50.

The square root of 135918797 is about 11658.4217199413. The cubic root of 135918797 is about 514.1539468822.

The spelling of 135918797 in words is "one hundred thirty-five million, nine hundred eighteen thousand, seven hundred ninety-seven".