136816423 has 8 divisors (see below), whose sum is σ = 141823616. Its totient is φ = 131846400.

The previous prime is 136816331. The next prime is 136816441. The reversal of 136816423 is 324618631.

It is a happy number.

136816423 is digitally balanced in base 2, 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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136816423 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 (136816123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686 + ... + 16627.

It is an arithmetic number, because the mean of its divisors is an integer number (17727952).

Almost surely, 2^136816423 is an apocalyptic number.

136816423 is a deficient number, since it is larger than the sum of its proper divisors (5007193).

136816423 is a wasteful number, since it uses less digits than its factorization.

136816423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18585.

The product of its digits is 20736, while the sum is 34.

The square root of 136816423 is about 11696.8552611375. The cubic root of 136816423 is about 515.2833116123.

The spelling of 136816423 in words is "one hundred thirty-six million, eight hundred sixteen thousand, four hundred twenty-three".