30003147 has 24 divisors (see below), whose sum is σ = 48306960. Its totient is φ = 17832960.

The previous prime is 30003143. The next prime is 30003157. The reversal of 30003147 is 74130003.

It is not a de Polignac number, because 30003147 - 2² = 30003143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30003143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2254 + ... + 8067.

It is an arithmetic number, because the mean of its divisors is an integer number (2012790).

Almost surely, 2^30003147 is an apocalyptic number.

30003147 is a deficient number, since it is larger than the sum of its proper divisors (18303813).

30003147 is a wasteful number, since it uses less digits than its factorization.

30003147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10363 (or 10360 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30003147 is about 5477.5128479995. The cubic root of 30003147 is about 310.7341151718.

The spelling of 30003147 in words is "thirty million, three thousand, one hundred forty-seven".