136286189 has 4 divisors (see below), whose sum is σ = 146769756. Its totient is φ = 125802624.

The previous prime is 136286179. The next prime is 136286191. The reversal of 136286189 is 981682631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981682631 = 37 ⋅26531963.

It can be written as a sum of positive squares in 2 ways, for example, as 7645225 + 128640964 = 2765^2 + 11342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136286189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136286149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5241764 + ... + 5241789.

It is an arithmetic number, because the mean of its divisors is an integer number (36692439).

Almost surely, 2^136286189 is an apocalyptic number.

It is an amenable number.

136286189 is a deficient number, since it is larger than the sum of its proper divisors (10483567).

136286189 is a wasteful number, since it uses less digits than its factorization.

136286189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10483566.

The product of its digits is 124416, while the sum is 44.

The square root of 136286189 is about 11674.1675934518. The cubic root of 136286189 is about 514.6167872182.

The spelling of 136286189 in words is "one hundred thirty-six million, two hundred eighty-six thousand, one hundred eighty-nine".