136353438 has 48 divisors (see below), whose sum is σ = 328438656. Its totient is φ = 40599360.

The previous prime is 136353431. The next prime is 136353449. The reversal of 136353438 is 834353631.

136353438 is a `hidden beast` number, since 13 + 635 + 3 + 4 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136353431) 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 23 ways as a sum of consecutive naturals, for example, 2145 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (6842472).

Almost surely, 2^136353438 is an apocalyptic number.

136353438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

136353438 is an abundant number, since it is smaller than the sum of its proper divisors (192085218).

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

136353438 is a wasteful number, since it uses less digits than its factorization.

136353438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18849 (or 18846 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 136353438 is about 11677.0474864154. The cubic root of 136353438 is about 514.7014173971.

The spelling of 136353438 in words is "one hundred thirty-six million, three hundred fifty-three thousand, four hundred thirty-eight".