836740139 has 8 divisors (see below), whose sum is σ = 865030320. Its totient is φ = 808851456.

The previous prime is 836740133. The next prime is 836740141. The reversal of 836740139 is 931047638.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-836740139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 836740096 and 836740105.

It is not an unprimeable number, because it can be changed into a prime (836740133) 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 7 ways as a sum of consecutive naturals, for example, 96134 + ... + 104475.

It is an arithmetic number, because the mean of its divisors is an integer number (108128790).

Almost surely, 2^836740139 is an apocalyptic number.

836740139 is a deficient number, since it is larger than the sum of its proper divisors (28290181).

836740139 is a wasteful number, since it uses less digits than its factorization.

836740139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200749.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 836740139 is about 28926.4608792711. The cubic root of 836740139 is about 942.3166560743.

The spelling of 836740139 in words is "eight hundred thirty-six million, seven hundred forty thousand, one hundred thirty-nine".