136191367 has 4 divisors (see below), whose sum is σ = 146667640. Its totient is φ = 125715096.

The previous prime is 136191361. The next prime is 136191379. The reversal of 136191367 is 763191631.

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

It is not a de Polignac number, because 136191367 - 2¹⁹ = 135667079 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 (136191361) by changing a digit.

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, 5238117 + ... + 5238142.

It is an arithmetic number, because the mean of its divisors is an integer number (36666910).

Almost surely, 2^136191367 is an apocalyptic number.

136191367 is a deficient number, since it is larger than the sum of its proper divisors (10476273).

136191367 is a wasteful number, since it uses less digits than its factorization.

136191367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476272.

The product of its digits is 20412, while the sum is 37.

The square root of 136191367 is about 11670.1056978932. The cubic root of 136191367 is about 514.4974102056.

The spelling of 136191367 in words is "one hundred thirty-six million, one hundred ninety-one thousand, three hundred sixty-seven".