135091818 has 24 divisors (see below), whose sum is σ = 298928448. Its totient is φ = 44072232.

The previous prime is 135091807. The next prime is 135091823. The reversal of 135091818 is 818190531.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78996 + ... + 80687.

It is an arithmetic number, because the mean of its divisors is an integer number (12455352).

Almost surely, 2^135091818 is an apocalyptic number.

135091818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

135091818 is an abundant number, since it is smaller than the sum of its proper divisors (163836630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135091818 is a wasteful number, since it uses less digits than its factorization.

135091818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159738 (or 159735 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 135091818 is about 11622.9005846217. The cubic root of 135091818 is about 513.1090588103.

The spelling of 135091818 in words is "one hundred thirty-five million, ninety-one thousand, eight hundred eighteen".