4561021 has 8 divisors (see below), whose sum is σ = 4748544. Its totient is φ = 4377360.

The previous prime is 4561009. The next prime is 4561043. The reversal of 4561021 is 1201654.

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

It is a cyclic number.

It is not a de Polignac number, because 4561021 - 2¹¹ = 4558973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4561021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4561001) 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, 1576 + ... + 3406.

It is an arithmetic number, because the mean of its divisors is an integer number (593568).

Almost surely, 2^4561021 is an apocalyptic number.

It is an amenable number.

4561021 is a deficient number, since it is larger than the sum of its proper divisors (187523).

4561021 is a wasteful number, since it uses less digits than its factorization.

4561021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 4561021 is about 2135.6547005544. The cubic root of 4561021 is about 165.8392623207.

Adding to 4561021 its reverse (1201654), we get a palindrome (5762675).

The spelling of 4561021 in words is "four million, five hundred sixty-one thousand, twenty-one".