30247147 has 8 divisors (see below), whose sum is σ = 34769376. Its totient is φ = 25775232.

The previous prime is 30247141. The next prime is 30247157. The reversal of 30247147 is 74174203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30247147 - 2²³ = 21858539 is a prime.

It is a super-3 number, since 3×30247147³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30247141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11278 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (4346172).

Almost surely, 2^30247147 is an apocalyptic number.

30247147 is a deficient number, since it is larger than the sum of its proper divisors (4522229).

30247147 is a wasteful number, since it uses less digits than its factorization.

30247147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25157.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 30247147 is about 5499.7406302479. The cubic root of 30247147 is about 311.5741883281.

The spelling of 30247147 in words is "thirty million, two hundred forty-seven thousand, one hundred forty-seven".