30503105 has 16 divisors (see below), whose sum is σ = 37385040. Its totient is φ = 23887872.

The previous prime is 30503093. The next prime is 30503119. The reversal of 30503105 is 50130503.

It can be written as a sum of positive squares in 8 ways, for example, as 3701776 + 26801329 = 1924^2 + 5177^2 .

It is a cyclic number.

It is not a de Polignac number, because 30503105 - 2⁴ = 30503089 is a prime.

It is an unprimeable number.

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, 52577 + ... + 53153.

It is an arithmetic number, because the mean of its divisors is an integer number (2336565).

Almost surely, 2^30503105 is an apocalyptic number.

It is an amenable number.

30503105 is a deficient number, since it is larger than the sum of its proper divisors (6881935).

30503105 is a wasteful number, since it uses less digits than its factorization.

30503105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 30503105 is about 5522.9616149309. The cubic root of 30503105 is about 312.4505905883.

Adding to 30503105 its reverse (50130503), we get a palindrome (80633608).

The spelling of 30503105 in words is "thirty million, five hundred three thousand, one hundred five".