30147512 has 16 divisors (see below), whose sum is σ = 56624400. Its totient is φ = 15047680.

The previous prime is 30147497. The next prime is 30147517. The reversal of 30147512 is 21574103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30147517) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2189 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (3539025).

Almost surely, 2^30147512 is an apocalyptic number.

It is an amenable number.

30147512 is a deficient number, since it is larger than the sum of its proper divisors (26476888).

30147512 is a wasteful number, since it uses less digits than its factorization.

30147512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526 (or 6522 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 30147512 is about 5490.6750040409. The cubic root of 30147512 is about 311.2317004558.

The spelling of 30147512 in words is "thirty million, one hundred forty-seven thousand, five hundred twelve".