170042371 has 2 divisors, whose sum is σ = 170042372. Its totient is φ = 170042370.

The previous prime is 170042363. The next prime is 170042393. The reversal of 170042371 is 173240071.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 170042371 - 2³ = 170042363 is a prime.

It is not a weakly prime, because it can be changed into another prime (170042771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85021185 + 85021186.

It is an arithmetic number, because the mean of its divisors is an integer number (85021186).

Almost surely, 2^170042371 is an apocalyptic number.

170042371 is a deficient number, since it is larger than the sum of its proper divisors (1).

170042371 is an equidigital number, since it uses as much as digits as its factorization.

170042371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 170042371 is about 13040.0295628499. The cubic root of 170042371 is about 554.0118455503.

The spelling of 170042371 in words is "one hundred seventy million, forty-two thousand, three hundred seventy-one".