155423323 has 4 divisors (see below), whose sum is σ = 169552728. Its totient is φ = 141293920.

The previous prime is 155423321. The next prime is 155423329. The reversal of 155423323 is 323324551.

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 155423323 - 2¹ = 155423321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155423291 and 155423300.

It is not an unprimeable number, because it can be changed into a prime (155423321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7064686 + ... + 7064707.

It is an arithmetic number, because the mean of its divisors is an integer number (42388182).

Almost surely, 2^155423323 is an apocalyptic number.

155423323 is a deficient number, since it is larger than the sum of its proper divisors (14129405).

155423323 is a wasteful number, since it uses less digits than its factorization.

155423323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14129404.

The product of its digits is 10800, while the sum is 28.

The square root of 155423323 is about 12466.8890666437. The cubic root of 155423323 is about 537.6571141928.

Adding to 155423323 its reverse (323324551), we get a palindrome (478747874).

The spelling of 155423323 in words is "one hundred fifty-five million, four hundred twenty-three thousand, three hundred twenty-three".