2023451 has 4 divisors (see below), whose sum is σ = 2070552. Its totient is φ = 1976352.

The previous prime is 2023447. The next prime is 2023453. The reversal of 2023451 is 1543202.

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 2023451 - 2² = 2023447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23486 + ... + 23571.

It is an arithmetic number, because the mean of its divisors is an integer number (517638).

2^2023451 is an apocalyptic number.

2023451 is a deficient number, since it is larger than the sum of its proper divisors (47101).

2023451 is an equidigital number, since it uses as much as digits as its factorization.

2023451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47100.

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

The square root of 2023451 is about 1422.4805798323. The cubic root of 2023451 is about 126.4826328702.

Adding to 2023451 its reverse (1543202), we get a palindrome (3566653).

Subtracting from 2023451 its reverse (1543202), we obtain a square (480249 = 693²).

The spelling of 2023451 in words is "two million, twenty-three thousand, four hundred fifty-one".