136824386 has 4 divisors (see below), whose sum is σ = 205236582. Its totient is φ = 68412192.

The previous prime is 136824341. The next prime is 136824439. The reversal of 136824386 is 683428631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 104550625 + 32273761 = 10225^2 + 5681^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34206095 + ... + 34206098.

Almost surely, 2^136824386 is an apocalyptic number.

136824386 is a deficient number, since it is larger than the sum of its proper divisors (68412196).

136824386 is an equidigital number, since it uses as much as digits as its factorization.

136824386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68412195.

The product of its digits is 165888, while the sum is 41.

The square root of 136824386 is about 11697.1956468207. The cubic root of 136824386 is about 515.2933082714.

The spelling of 136824386 in words is "one hundred thirty-six million, eight hundred twenty-four thousand, three hundred eighty-six".