136000023 has 4 divisors (see below), whose sum is σ = 181333368. Its totient is φ = 90666680.

The previous prime is 136000021. The next prime is 136000027. The reversal of 136000023 is 320000631.

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

It is a cyclic number.

It is not a de Polignac number, because 136000023 - 2¹ = 136000021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135999966 and 136000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136000021) 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, 22666668 + ... + 22666673.

It is an arithmetic number, because the mean of its divisors is an integer number (45333342).

Almost surely, 2^136000023 is an apocalyptic number.

136000023 is a deficient number, since it is larger than the sum of its proper divisors (45333345).

136000023 is an equidigital number, since it uses as much as digits as its factorization.

136000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45333344.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 136000023 is about 11661.9047758074. The cubic root of 136000023 is about 514.2563471216.

Adding to 136000023 its reverse (320000631), we get a palindrome (456000654).

The spelling of 136000023 in words is "one hundred thirty-six million, twenty-three", and thus it is an aban number.