170012042 has 4 divisors (see below), whose sum is σ = 255018066. Its totient is φ = 85006020.

The previous prime is 170012041. The next prime is 170012047. The reversal of 170012042 is 240210071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 155027401 + 14984641 = 12451^2 + 3871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 170012042.

It is not an unprimeable number, because it can be changed into a prime (170012041) by changing a digit.

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 as a sum of consecutive naturals, namely, 42503009 + ... + 42503012.

Almost surely, 2^170012042 is an apocalyptic number.

170012042 is a deficient number, since it is larger than the sum of its proper divisors (85006024).

170012042 is an equidigital number, since it uses as much as digits as its factorization.

170012042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85006023.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 170012042 is about 13038.8665918476. The cubic root of 170012042 is about 553.9789054773.

The spelling of 170012042 in words is "one hundred seventy million, twelve thousand, forty-two".