136933247 has 16 divisors (see below), whose sum is σ = 158795520. Its totient is φ = 116769600.

The previous prime is 136933243. The next prime is 136933253. The reversal of 136933247 is 742339631.

It is a cyclic number.

It is not a de Polignac number, because 136933247 - 2² = 136933243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136933247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136933241) 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 15 ways as a sum of consecutive naturals, for example, 18347 + ... + 24707.

It is an arithmetic number, because the mean of its divisors is an integer number (9924720).

Almost surely, 2^136933247 is an apocalyptic number.

136933247 is a deficient number, since it is larger than the sum of its proper divisors (21862273).

136933247 is a wasteful number, since it uses less digits than its factorization.

136933247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494.

The product of its digits is 81648, while the sum is 38.

The square root of 136933247 is about 11701.8480164459. The cubic root of 136933247 is about 515.4299322463.

The spelling of 136933247 in words is "one hundred thirty-six million, nine hundred thirty-three thousand, two hundred forty-seven".