170140985 has 36 divisors (see below), whose sum is σ = 245715372. Its totient is φ = 112686336.

The previous prime is 170140979. The next prime is 170141003. The reversal of 170140985 is 589041071.

It can be written as a sum of positive squares in 6 ways, for example, as 9966649 + 160174336 = 3157^2 + 12656^2 .

It is not a de Polignac number, because 170140985 - 2⁴ = 170140969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1241837 + ... + 1241973.

It is an arithmetic number, because the mean of its divisors is an integer number (6825427).

Almost surely, 2^170140985 is an apocalyptic number.

It is an amenable number.

170140985 is a deficient number, since it is larger than the sum of its proper divisors (75574387).

170140985 is an equidigital number, since it uses as much as digits as its factorization.

170140985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 170140985 is about 13043.8102178773. The cubic root of 170140985 is about 554.1189223256.

The spelling of 170140985 in words is "one hundred seventy million, one hundred forty thousand, nine hundred eighty-five".