136916843 has 4 divisors (see below), whose sum is σ = 156476400. Its totient is φ = 117357288.

The previous prime is 136916839. The next prime is 136916851. The reversal of 136916843 is 348619631.

136916843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348619631 = 1249 ⋅279119.

It is a cyclic number.

It is not a de Polignac number, because 136916843 - 2² = 136916839 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 136916843.

It is not an unprimeable number, because it can be changed into a prime (136916893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9779768 + ... + 9779781.

It is an arithmetic number, because the mean of its divisors is an integer number (39119100).

Almost surely, 2^136916843 is an apocalyptic number.

136916843 is a deficient number, since it is larger than the sum of its proper divisors (19559557).

136916843 is an equidigital number, since it uses as much as digits as its factorization.

136916843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19559556.

The product of its digits is 93312, while the sum is 41.

The square root of 136916843 is about 11701.1470805216. The cubic root of 136916843 is about 515.4093493456.

The spelling of 136916843 in words is "one hundred thirty-six million, nine hundred sixteen thousand, eight hundred forty-three".