2023155 has 12 divisors (see below), whose sum is σ = 3506880. Its totient is φ = 1078992.

The previous prime is 2023141. The next prime is 2023157. The reversal of 2023155 is 5513202.

It is a happy number.

It is not a de Polignac number, because 2023155 - 2⁷ = 2023027 is a prime.

2023155 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22435 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (292240).

2^2023155 is an apocalyptic number.

2023155 is a deficient number, since it is larger than the sum of its proper divisors (1483725).

2023155 is a wasteful number, since it uses less digits than its factorization.

2023155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44970 (or 44967 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2023155 is about 1422.3765324273. The cubic root of 2023155 is about 126.4764650765.

Adding to 2023155 its reverse (5513202), we get a palindrome (7536357).

The spelling of 2023155 in words is "two million, twenty-three thousand, one hundred fifty-five".