4821545 has 4 divisors (see below), whose sum is σ = 5785860. Its totient is φ = 3857232.

The previous prime is 4821541. The next prime is 4821563. The reversal of 4821545 is 5451284.

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 3193369 + 1628176 = 1787^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 4821545 - 2² = 4821541 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4821541) 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, 482150 + ... + 482159.

It is an arithmetic number, because the mean of its divisors is an integer number (1446465).

Almost surely, 2^4821545 is an apocalyptic number.

It is an amenable number.

4821545 is a deficient number, since it is larger than the sum of its proper divisors (964315).

4821545 is an equidigital number, since it uses as much as digits as its factorization.

4821545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964314.

The product of its digits is 6400, while the sum is 29.

The square root of 4821545 is about 2195.8016759261. The cubic root of 4821545 is about 168.9385418956.

The spelling of 4821545 in words is "four million, eight hundred twenty-one thousand, five hundred forty-five".