136999286 has 8 divisors (see below), whose sum is σ = 210511224. Its totient is φ = 66828880.

The previous prime is 136999283. The next prime is 136999301. The reversal of 136999286 is 682999631.

136999286 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136999283) 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, 835280 + ... + 835443.

It is an arithmetic number, because the mean of its divisors is an integer number (26313903).

Almost surely, 2^136999286 is an apocalyptic number.

136999286 is a deficient number, since it is larger than the sum of its proper divisors (73511938).

136999286 is a wasteful number, since it uses less digits than its factorization.

136999286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670766.

The product of its digits is 1259712, while the sum is 53.

The square root of 136999286 is about 11704.6694101115. The cubic root of 136999286 is about 515.5127779821.

The spelling of 136999286 in words is "one hundred thirty-six million, nine hundred ninety-nine thousand, two hundred eighty-six".