30112144 has 10 divisors (see below), whose sum is σ = 58342310. Its totient is φ = 15056064.

The previous prime is 30112139. The next prime is 30112157. The reversal of 30112144 is 44121103.

It can be written as a sum of positive squares in only one way, i.e., 29030544 + 1081600 = 5388^2 + 1040^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 1882009 = 30112144 / (3 + 0 + 1 + 1 + 2 + 1 + 4 + 4).

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 as a sum of consecutive naturals, namely, 940989 + ... + 941020.

It is an arithmetic number, because the mean of its divisors is an integer number (5834231).

Almost surely, 2^30112144 is an apocalyptic number.

It is an amenable number.

30112144 is a deficient number, since it is larger than the sum of its proper divisors (28230166).

30112144 is a wasteful number, since it uses less digits than its factorization.

30112144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882017 (or 1882011 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30112144 is about 5487.4533255418. The cubic root of 30112144 is about 311.1099441377.

Adding to 30112144 its reverse (44121103), we get a palindrome (74233247).

The spelling of 30112144 in words is "thirty million, one hundred twelve thousand, one hundred forty-four".