136358388 has 18 divisors (see below), whose sum is σ = 344683794. Its totient is φ = 45452784.

The previous prime is 136358323. The next prime is 136358389. The reversal of 136358388 is 883853631.

136358388 is a `hidden beast` number, since 1 + 3 + 63 + 583 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131744484 + 4613904 = 11478^2 + 2148^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136358389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1893831 + ... + 1893902.

Almost surely, 2^136358388 is an apocalyptic number.

136358388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136358388 is an abundant number, since it is smaller than the sum of its proper divisors (208325406).

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

136358388 is a wasteful number, since it uses less digits than its factorization.

136358388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787743 (or 3787738 counting only the distinct ones).

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

The square root of 136358388 is about 11677.2594387553. The cubic root of 136358388 is about 514.7076456747.

The spelling of 136358388 in words is "one hundred thirty-six million, three hundred fifty-eight thousand, three hundred eighty-eight".