4059581 has 2 divisors, whose sum is σ = 4059582. Its totient is φ = 4059580.

The previous prime is 4059571. The next prime is 4059593. The reversal of 4059581 is 1859504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3740356 + 319225 = 1934^2 + 565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4059581 is a prime.

It is a super-2 number, since 2×4059581² = 32960395791122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4059511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2029790 + 2029791.

It is an arithmetic number, because the mean of its divisors is an integer number (2029791).

Almost surely, 2^4059581 is an apocalyptic number.

It is an amenable number.

4059581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4059581 is an equidigital number, since it uses as much as digits as its factorization.

4059581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 4059581 is about 2014.8401921741. The cubic root of 4059581 is about 159.5243818428.

The spelling of 4059581 in words is "four million, fifty-nine thousand, five hundred eighty-one".