923155 has 4 divisors (see below), whose sum is σ = 1107792. Its totient is φ = 738520.

The previous prime is 923147. The next prime is 923171. The reversal of 923155 is 551329.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551329 = 479 ⋅1151.

It is not a de Polignac number, because 923155 - 2³ = 923147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92311 + ... + 92320.

It is an arithmetic number, because the mean of its divisors is an integer number (276948).

2⁹²³¹⁵⁵ is an apocalyptic number.

923155 is a deficient number, since it is larger than the sum of its proper divisors (184637).

923155 is a wasteful number, since it uses less digits than its factorization.

923155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184636.

The product of its digits is 1350, while the sum is 25.

The square root of 923155 is about 960.8095544904. The cubic root of 923155 is about 97.3699339531.

It can be divided in two parts, 9231 and 55, that multiplied together give a palindrome (507705).

The spelling of 923155 in words is "nine hundred twenty-three thousand, one hundred fifty-five".