136804023 has 24 divisors (see below), whose sum is σ = 212858880. Its totient is φ = 84419280.

The previous prime is 136804001. The next prime is 136804043. The reversal of 136804023 is 320408631.

It is a happy number.

It is not a de Polignac number, because 136804023 - 2¹⁰ = 136802999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136804043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4243 + ... + 17076.

It is an arithmetic number, because the mean of its divisors is an integer number (8869120).

Almost surely, 2^136804023 is an apocalyptic number.

136804023 is a deficient number, since it is larger than the sum of its proper divisors (76054857).

136804023 is a wasteful number, since it uses less digits than its factorization.

136804023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21379 (or 21376 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 136804023 is about 11696.3251921277. The cubic root of 136804023 is about 515.2677440219.

The spelling of 136804023 in words is "one hundred thirty-six million, eight hundred four thousand, twenty-three".