170131147 has 2 divisors, whose sum is σ = 170131148. Its totient is φ = 170131146.

The previous prime is 170131133. The next prime is 170131183. The reversal of 170131147 is 741131071.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170131147 is a prime.

It is not a weakly prime, because it can be changed into another prime (170131127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85065573 + 85065574.

It is an arithmetic number, because the mean of its divisors is an integer number (85065574).

Almost surely, 2^170131147 is an apocalyptic number.

170131147 is a deficient number, since it is larger than the sum of its proper divisors (1).

170131147 is an equidigital number, since it uses as much as digits as its factorization.

170131147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 170131147 is about 13043.4330986899. The cubic root of 170131147 is about 554.1082419144.

The spelling of 170131147 in words is "one hundred seventy million, one hundred thirty-one thousand, one hundred forty-seven".