136318788 has 30 divisors (see below), whose sum is σ = 356365086. Its totient is φ = 45439488.

The previous prime is 136318757. The next prime is 136318789. The reversal of 136318788 is 887813631.

136318788 is a `hidden beast` number, since 1 + 3 + 631 + 8 + 7 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 117029124 + 19289664 = 10818^2 + 4392^2 .

It is not an unprimeable number, because it can be changed into a prime (136318789) 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, 210045 + ... + 210692.

Almost surely, 2^136318788 is an apocalyptic number.

136318788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136318788 is an abundant number, since it is smaller than the sum of its proper divisors (220046298).

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

136318788 is a wasteful number, since it uses less digits than its factorization.

136318788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420753 (or 420742 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 136318788 is about 11675.5637123010. The cubic root of 136318788 is about 514.6578152328.

The spelling of 136318788 in words is "one hundred thirty-six million, three hundred eighteen thousand, seven hundred eighty-eight".