30803156 has 6 divisors (see below), whose sum is σ = 53905530. Its totient is φ = 15401576.

The previous prime is 30803147. The next prime is 30803221. The reversal of 30803156 is 65130803.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 111556 = 5540^2 + 334^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3850391 + ... + 3850398.

It is an arithmetic number, because the mean of its divisors is an integer number (8984255).

Almost surely, 2^30803156 is an apocalyptic number.

It is an amenable number.

30803156 is a deficient number, since it is larger than the sum of its proper divisors (23102374).

30803156 is a wasteful number, since it uses less digits than its factorization.

30803156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700793 (or 7700791 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30803156 is about 5550.0590987844. The cubic root of 30803156 is about 313.4717476089.

Adding to 30803156 its reverse (65130803), we get a palindrome (95933959).

The spelling of 30803156 in words is "thirty million, eight hundred three thousand, one hundred fifty-six".