4959581 has 16 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 4305600.

The previous prime is 4959569. The next prime is 4959583. The reversal of 4959581 is 1859594.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4959581 is a prime.

It is a super-2 number, since 2×4959581² = 49194887391122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4959583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27311 + ... + 27491.

It is an arithmetic number, because the mean of its divisors is an integer number (353808).

Almost surely, 2^4959581 is an apocalyptic number.

It is an amenable number.

4959581 is a deficient number, since it is larger than the sum of its proper divisors (701347).

4959581 is a wasteful number, since it uses less digits than its factorization.

4959581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292.

The product of its digits is 64800, while the sum is 41.

The square root of 4959581 is about 2227.0116748684. The cubic root of 4959581 is about 170.5355773517.

It can be divided in two parts, 49595 and 81, that multiplied together give a triangular number (4017195 = T₂₈₃₄).

The spelling of 4959581 in words is "four million, nine hundred fifty-nine thousand, five hundred eighty-one".