30272147 has 4 divisors (see below), whose sum is σ = 30342816. Its totient is φ = 30201480.

The previous prime is 30272131. The next prime is 30272153. The reversal of 30272147 is 74127203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30272147 - 2⁴ = 30272131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30272447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34688 + ... + 35549.

It is an arithmetic number, because the mean of its divisors is an integer number (7585704).

Almost surely, 2^30272147 is an apocalyptic number.

30272147 is a deficient number, since it is larger than the sum of its proper divisors (70669).

30272147 is an equidigital number, since it uses as much as digits as its factorization.

30272147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70668.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 30272147 is about 5502.0129952591. The cubic root of 30272147 is about 311.6600058947.

The spelling of 30272147 in words is "thirty million, two hundred seventy-two thousand, one hundred forty-seven".