134556023 has 4 divisors (see below), whose sum is σ = 153778320. Its totient is φ = 115333728.

The previous prime is 134556001. The next prime is 134556047. The reversal of 134556023 is 320655431.

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 134556023 - 2²⁰ = 133507447 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 (134556053) 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, 9611138 + ... + 9611151.

It is an arithmetic number, because the mean of its divisors is an integer number (38444580).

Almost surely, 2^134556023 is an apocalyptic number.

134556023 is a deficient number, since it is larger than the sum of its proper divisors (19222297).

134556023 is an equidigital number, since it uses as much as digits as its factorization.

134556023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19222296.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 134556023 is about 11599.8285763196. The cubic root of 134556023 is about 512.4298034335.

The spelling of 134556023 in words is "one hundred thirty-four million, five hundred fifty-six thousand, twenty-three".