136281218 has 8 divisors (see below), whose sum is σ = 207222348. Its totient is φ = 67207104.

The previous prime is 136281193. The next prime is 136281227. The reversal of 136281218 is 812182631.

It can be written as a sum of positive squares in 2 ways, for example, as 135326689 + 954529 = 11633^2 + 977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466571 + ... + 466862.

Almost surely, 2^136281218 is an apocalyptic number.

136281218 is a deficient number, since it is larger than the sum of its proper divisors (70941130).

136281218 is an equidigital number, since it uses as much as digits as its factorization.

136281218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933508.

The product of its digits is 4608, while the sum is 32.

The square root of 136281218 is about 11673.9546855382. The cubic root of 136281218 is about 514.6105303085.

The spelling of 136281218 in words is "one hundred thirty-six million, two hundred eighty-one thousand, two hundred eighteen".