135338688 has 70 divisors (see below), whose sum is σ = 401201636. Its totient is φ = 45111168.

The previous prime is 135338681. The next prime is 135338699. The reversal of 135338688 is 886833531.

It is a super-2 number, since 2×135338688² = 36633120939122688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135338681) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7870 + ... + 18237.

Almost surely, 2^135338688 is an apocalyptic number.

135338688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

135338688 is an abundant number, since it is smaller than the sum of its proper divisors (265862948).

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

135338688 is an equidigital number, since it uses as much as digits as its factorization.

135338688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26131 (or 26112 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 135338688 is about 11633.5157196782. The cubic root of 135338688 is about 513.4214245103.

The spelling of 135338688 in words is "one hundred thirty-five million, three hundred thirty-eight thousand, six hundred eighty-eight".