4520081 has 8 divisors (see below), whose sum is σ = 4778400. Its totient is φ = 4275684.

The previous prime is 4520071. The next prime is 4520099. The reversal of 4520081 is 1800254.

It is not a de Polignac number, because 4520081 - 2¹⁰ = 4519057 is a prime.

It is a super-2 number, since 2×4520081² = 40862264493122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4520051) 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, 6530 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (597300).

Almost surely, 2^4520081 is an apocalyptic number.

It is an amenable number.

4520081 is a deficient number, since it is larger than the sum of its proper divisors (258319).

4520081 is an frugal number, since it uses more digits than its factorization.

4520081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 4520081 is about 2126.0482120592. The cubic root of 4520081 is about 165.3415758370.

The spelling of 4520081 in words is "four million, five hundred twenty thousand, eighty-one".