4512021 has 8 divisors (see below), whose sum is σ = 6369984. Its totient is φ = 2831040.

The previous prime is 4512007. The next prime is 4512037. The reversal of 4512021 is 1202154.

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

It is not a de Polignac number, because 4512021 - 2⁵ = 4511989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4512061) 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, 44185 + ... + 44286.

It is an arithmetic number, because the mean of its divisors is an integer number (796248).

Almost surely, 2^4512021 is an apocalyptic number.

It is an amenable number.

4512021 is a deficient number, since it is larger than the sum of its proper divisors (1857963).

4512021 is a wasteful number, since it uses less digits than its factorization.

4512021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88491.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4512021 is about 2124.1518307315. The cubic root of 4512021 is about 165.2432408739.

Adding to 4512021 its reverse (1202154), we get a palindrome (5714175).

The spelling of 4512021 in words is "four million, five hundred twelve thousand, twenty-one".