30091105 has 16 divisors (see below), whose sum is σ = 41710464. Its totient is φ = 20596480.

The previous prime is 30091081. The next prime is 30091123. The reversal of 30091105 is 50119003.

It is not a de Polignac number, because 30091105 - 2⁵ = 30091073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15157 + ... + 17026.

It is an arithmetic number, because the mean of its divisors is an integer number (2606904).

Almost surely, 2^30091105 is an apocalyptic number.

It is an amenable number.

30091105 is a deficient number, since it is larger than the sum of its proper divisors (11619359).

30091105 is a wasteful number, since it uses less digits than its factorization.

30091105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32216.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 30091105 is about 5485.5359811052. The cubic root of 30091105 is about 311.0374709730.

It can be divided in two parts, 3009 and 1105, that added together give a palindrome (4114).

The spelling of 30091105 in words is "thirty million, ninety-one thousand, one hundred five".