2023129 has 4 divisors (see below), whose sum is σ = 2044084. Its totient is φ = 2002176.

The previous prime is 2023121. The next prime is 2023141. The reversal of 2023129 is 9213202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 455625 = 1252^2 + 675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2023129 - 2³ = 2023121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023121) 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, 10332 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (511021).

2^2023129 is an apocalyptic number.

It is an amenable number.

2023129 is a deficient number, since it is larger than the sum of its proper divisors (20955).

2023129 is an equidigital number, since it uses as much as digits as its factorization.

2023129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20954.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2023129 is about 1422.3673927646. The cubic root of 2023129 is about 126.4759232821.

The spelling of 2023129 in words is "two million, twenty-three thousand, one hundred twenty-nine".