136243033 has 4 divisors (see below), whose sum is σ = 136934820. Its totient is φ = 135551248.

The previous prime is 136243021. The next prime is 136243043. The reversal of 136243033 is 330342631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330342631 = 3851 ⋅85781.

It can be written as a sum of positive squares in 2 ways, for example, as 90383049 + 45859984 = 9507^2 + 6772^2 .

It is a cyclic number.

It is not a de Polignac number, because 136243033 - 2¹⁷ = 136111961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136242989 and 136243007.

It is not an unprimeable number, because it can be changed into a prime (136243043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345598 + ... + 345991.

It is an arithmetic number, because the mean of its divisors is an integer number (34233705).

Almost surely, 2^136243033 is an apocalyptic number.

It is an amenable number.

136243033 is a deficient number, since it is larger than the sum of its proper divisors (691787).

136243033 is an equidigital number, since it uses as much as digits as its factorization.

136243033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691786.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 136243033 is about 11672.3190926225. The cubic root of 136243033 is about 514.5624624505.

Adding to 136243033 its reverse (330342631), we get a palindrome (466585664).

The spelling of 136243033 in words is "one hundred thirty-six million, two hundred forty-three thousand, thirty-three".