171125147 has 2 divisors, whose sum is σ = 171125148. Its totient is φ = 171125146.

The previous prime is 171125137. The next prime is 171125189. The reversal of 171125147 is 741521171.

171125147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (741521171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171125147 - 2¹⁶ = 171059611 is a prime.

It is not a weakly prime, because it can be changed into another prime (171125117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85562573 + 85562574.

It is an arithmetic number, because the mean of its divisors is an integer number (85562574).

Almost surely, 2^171125147 is an apocalyptic number.

171125147 is a deficient number, since it is larger than the sum of its proper divisors (1).

171125147 is an equidigital number, since it uses as much as digits as its factorization.

171125147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1960, while the sum is 29.

The square root of 171125147 is about 13081.4810705822. The cubic root of 171125147 is about 555.1852824012.

The spelling of 171125147 in words is "one hundred seventy-one million, one hundred twenty-five thousand, one hundred forty-seven".