136188023 has 4 divisors (see below), whose sum is σ = 136247328. Its totient is φ = 136128720.

The previous prime is 136188007. The next prime is 136188079. The reversal of 136188023 is 320881631.

It is a happy number.

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 136188023 - 2⁴ = 136188007 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 (136188223) 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, 26063 + ... + 30848.

It is an arithmetic number, because the mean of its divisors is an integer number (34061832).

Almost surely, 2^136188023 is an apocalyptic number.

136188023 is a deficient number, since it is larger than the sum of its proper divisors (59305).

136188023 is an equidigital number, since it uses as much as digits as its factorization.

136188023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59304.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 136188023 is about 11669.9624249609. The cubic root of 136188023 is about 514.4931992353.

The spelling of 136188023 in words is "one hundred thirty-six million, one hundred eighty-eight thousand, twenty-three".