2023145 has 16 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 1545600.

The previous prime is 2023141. The next prime is 2023157. The reversal of 2023145 is 5413202.

It is not a de Polignac number, because 2023145 - 2² = 2023141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2023141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14486 + ... + 14624.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^2023145 is an apocalyptic number.

It is an amenable number.

2023145 is a deficient number, since it is larger than the sum of its proper divisors (517015).

2023145 is a wasteful number, since it uses less digits than its factorization.

2023145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2023145 is about 1422.3730171794. The cubic root of 2023145 is about 126.4762566946.

Adding to 2023145 its reverse (5413202), we get a palindrome (7436347).

The spelling of 2023145 in words is "two million, twenty-three thousand, one hundred forty-five".