134643023 has 4 divisors (see below), whose sum is σ = 134861160. Its totient is φ = 134424888.

The previous prime is 134643017. The next prime is 134643029. The reversal of 134643023 is 320346431.

It is a happy number.

134643023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (134643017) and next prime (134643029).

It is a cyclic number.

It is not a de Polignac number, because 134643023 - 2¹² = 134638927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134642983 and 134643001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134643029) 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, 108140 + ... + 109377.

It is an arithmetic number, because the mean of its divisors is an integer number (33715290).

Almost surely, 2^134643023 is an apocalyptic number.

134643023 is a deficient number, since it is larger than the sum of its proper divisors (218137).

134643023 is an equidigital number, since it uses as much as digits as its factorization.

134643023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218136.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 134643023 is about 11603.5780257643. The cubic root of 134643023 is about 512.5402203612.

Adding to 134643023 its reverse (320346431), we get a palindrome (454989454).

The spelling of 134643023 in words is "one hundred thirty-four million, six hundred forty-three thousand, twenty-three".