2023521 has 8 divisors (see below), whose sum is σ = 2704800. Its totient is φ = 1345632.

The previous prime is 2023507. The next prime is 2023529. The reversal of 2023521 is 1253202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2023521 - 2⁷ = 2023393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2023521.

It is not an unprimeable number, because it can be changed into a prime (2023529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 2453.

It is an arithmetic number, because the mean of its divisors is an integer number (338100).

2^2023521 is an apocalyptic number.

It is an amenable number.

2023521 is a deficient number, since it is larger than the sum of its proper divisors (681279).

2023521 is a wasteful number, since it uses less digits than its factorization.

2023521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2023521 is about 1422.5051845248. The cubic root of 2023521 is about 126.4840913821.

Adding to 2023521 its reverse (1253202), we get a palindrome (3276723).

The spelling of 2023521 in words is "two million, twenty-three thousand, five hundred twenty-one".