30581089 has 16 divisors (see below), whose sum is σ = 40135680. Its totient is φ = 22574160.

The previous prime is 30581081. The next prime is 30581141. The reversal of 30581089 is 98018503.

It is not a de Polignac number, because 30581089 - 2³ = 30581081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30581081) 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 15 ways as a sum of consecutive naturals, for example, 8989 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (2508480).

Almost surely, 2^30581089 is an apocalyptic number.

It is an amenable number.

30581089 is a deficient number, since it is larger than the sum of its proper divisors (9554591).

30581089 is a wasteful number, since it uses less digits than its factorization.

30581089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20940.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 30581089 is about 5530.0170885812. The cubic root of 30581089 is about 312.7166335756.

The spelling of 30581089 in words is "thirty million, five hundred eighty-one thousand, eighty-nine".