4075081 has 4 divisors (see below), whose sum is σ = 4090500. Its totient is φ = 4059664.

The previous prime is 4075073. The next prime is 4075091. The reversal of 4075081 is 1805704.

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 1401856 + 2673225 = 1184^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 4075081 - 2³ = 4075073 is a prime.

It is a super-2 number, since 2×4075081² = 33212570313122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4075021) 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, 7306 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (1022625).

Almost surely, 2^4075081 is an apocalyptic number.

It is an amenable number.

4075081 is a deficient number, since it is larger than the sum of its proper divisors (15419).

4075081 is a wasteful number, since it uses less digits than its factorization.

4075081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15418.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 4075081 is about 2018.6829865038. The cubic root of 4075081 is about 159.7271521649.

The spelling of 4075081 in words is "four million, seventy-five thousand, eighty-one".