136683719 has 4 divisors (see below), whose sum is σ = 136723296. Its totient is φ = 136644144.

The previous prime is 136683691. The next prime is 136683731. The reversal of 136683719 is 917386631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136683719 is a prime.

It is a super-2 number, since 2×136683719² = 37364878079341922, which contains 22 as substring.

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 136683719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136683749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14054 + ... + 21699.

It is an arithmetic number, because the mean of its divisors is an integer number (34180824).

Almost surely, 2^136683719 is an apocalyptic number.

136683719 is a deficient number, since it is larger than the sum of its proper divisors (39577).

136683719 is an equidigital number, since it uses as much as digits as its factorization.

136683719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39576.

The product of its digits is 163296, while the sum is 44.

The square root of 136683719 is about 11691.1812491296. The cubic root of 136683719 is about 515.1166594047.

The spelling of 136683719 in words is "one hundred thirty-six million, six hundred eighty-three thousand, seven hundred nineteen".