136818884 has 12 divisors (see below), whose sum is σ = 239592108. Its totient is φ = 68364000.

The previous prime is 136818883. The next prime is 136818893. The reversal of 136818884 is 488818631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68392900 + 68425984 = 8270^2 + 8272^2 .

It is not an unprimeable number, because it can be changed into a prime (136818883) 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 3 ways as a sum of consecutive naturals, for example, 4067 + ... + 17034.

It is an arithmetic number, because the mean of its divisors is an integer number (19966009).

Almost surely, 2^136818884 is an apocalyptic number.

It is an amenable number.

136818884 is a deficient number, since it is larger than the sum of its proper divisors (102773224).

136818884 is a wasteful number, since it uses less digits than its factorization.

136818884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22726 (or 22724 counting only the distinct ones).

The product of its digits is 294912, while the sum is 47.

The square root of 136818884 is about 11696.9604598802. The cubic root of 136818884 is about 515.2864011649.

The spelling of 136818884 in words is "one hundred thirty-six million, eight hundred eighteen thousand, eight hundred eighty-four".