30223136 has 12 divisors (see below), whose sum is σ = 59501862. Its totient is φ = 15111552.

The previous prime is 30223111. The next prime is 30223147. The reversal of 30223136 is 63132203.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 6990736 = 4820^2 + 2644^2 .

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, 472205 + ... + 472268.

Almost surely, 2^30223136 is an apocalyptic number.

It is an amenable number.

30223136 is a deficient number, since it is larger than the sum of its proper divisors (29278726).

30223136 is an equidigital number, since it uses as much as digits as its factorization.

30223136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944483 (or 944475 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 30223136 is about 5497.5572757362. The cubic root of 30223136 is about 311.4917211750.

Adding to 30223136 its reverse (63132203), we get a palindrome (93355339).

The spelling of 30223136 in words is "thirty million, two hundred twenty-three thousand, one hundred thirty-six".