4528081 has 4 divisors (see below), whose sum is σ = 4638564. Its totient is φ = 4417600.

The previous prime is 4528021. The next prime is 4528087. The reversal of 4528081 is 1808254.

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 467856 + 4060225 = 684^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 4528081 - 2¹¹ = 4526033 is a prime.

It is a super-2 number, since 2×4528081² = 41007035085122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4528087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55180 + ... + 55261.

It is an arithmetic number, because the mean of its divisors is an integer number (1159641).

Almost surely, 2^4528081 is an apocalyptic number.

4528081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4528081 is a deficient number, since it is larger than the sum of its proper divisors (110483).

4528081 is a wasteful number, since it uses less digits than its factorization.

4528081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110482.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 4528081 is about 2127.9288052000. The cubic root of 4528081 is about 165.4390632504.

The spelling of 4528081 in words is "four million, five hundred twenty-eight thousand, eighty-one".