30371147 has 2 divisors, whose sum is σ = 30371148. Its totient is φ = 30371146.

The previous prime is 30371137. The next prime is 30371183. The reversal of 30371147 is 74117303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30371147 - 2¹⁸ = 30109003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30371137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15185573 + 15185574.

It is an arithmetic number, because the mean of its divisors is an integer number (15185574).

Almost surely, 2^30371147 is an apocalyptic number.

30371147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30371147 is an equidigital number, since it uses as much as digits as its factorization.

30371147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 30371147 is about 5511.0023589180. The cubic root of 30371147 is about 311.9993802037. Note that the first 3 decimals are identical.

Subtracting from 30371147 its sum of digits (26), we obtain a square (30371121 = 5511²).

The spelling of 30371147 in words is "thirty million, three hundred seventy-one thousand, one hundred forty-seven".