170442971 has 2 divisors, whose sum is σ = 170442972. Its totient is φ = 170442970.

The previous prime is 170442959. The next prime is 170442983. The reversal of 170442971 is 179244071.

It is a balanced prime because it is at equal distance from previous prime (170442959) and next prime (170442983).

It is an emirp because it is prime and its reverse (179244071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170442971 - 2²⁶ = 103334107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (170444971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85221485 + 85221486.

It is an arithmetic number, because the mean of its divisors is an integer number (85221486).

Almost surely, 2^170442971 is an apocalyptic number.

170442971 is a deficient number, since it is larger than the sum of its proper divisors (1).

170442971 is an equidigital number, since it uses as much as digits as its factorization.

170442971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 170442971 is about 13055.3809212907. The cubic root of 170442971 is about 554.4465667824.

The spelling of 170442971 in words is "one hundred seventy million, four hundred forty-two thousand, nine hundred seventy-one".