155323 has 4 divisors (see below), whose sum is σ = 177520. Its totient is φ = 133128.

The previous prime is 155317. The next prime is 155327. The reversal of 155323 is 323551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323551 = 19 ⋅17029.

It is a cyclic number.

It is not a de Polignac number, because 155323 - 2⁵ = 155291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155323.

It is not an unprimeable number, because it can be changed into a prime (155327) 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, 11088 + ... + 11101.

It is an arithmetic number, because the mean of its divisors is an integer number (44380).

2¹⁵⁵³²³ is an apocalyptic number.

155323 is a deficient number, since it is larger than the sum of its proper divisors (22197).

155323 is an equidigital number, since it uses as much as digits as its factorization.

155323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22196.

The product of its digits is 450, while the sum is 19.

The square root of 155323 is about 394.1103906268. The cubic root of 155323 is about 53.7541406581.

Adding to 155323 its reverse (323551), we get a palindrome (478874).

The spelling of 155323 in words is "one hundred fifty-five thousand, three hundred twenty-three".