135923 has 8 divisors (see below), whose sum is σ = 145200. Its totient is φ = 127008.

The previous prime is 135913. The next prime is 135929. The reversal of 135923 is 329531.

It is a happy number.

135923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135923 - 2⁶ = 135859 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (135929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (18150).

2¹³⁵⁹²³ is an apocalyptic number.

135923 is a deficient number, since it is larger than the sum of its proper divisors (9277).

135923 is a wasteful number, since it uses less digits than its factorization.

135923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its digits is 810, while the sum is 23.

The square root of 135923 is about 368.6773657278. The cubic root of 135923 is about 51.4159246534.

The spelling of 135923 in words is "one hundred thirty-five thousand, nine hundred twenty-three".