171311042 has 16 divisors (see below), whose sum is σ = 296529792. Its totient is φ = 72705600.

The previous prime is 171311039. The next prime is 171311059. The reversal of 171311042 is 240113171.

It is a happy number.

It is a super-2 number, since 2×171311042² = 58694946222251528, which contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 57959 + ... + 60842.

It is an arithmetic number, because the mean of its divisors is an integer number (18533112).

Almost surely, 2^171311042 is an apocalyptic number.

171311042 is a deficient number, since it is larger than the sum of its proper divisors (125218750).

171311042 is a wasteful number, since it uses less digits than its factorization.

171311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118913.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 171311042 is about 13088.5844154362. The cubic root of 171311042 is about 555.3862441362.

The spelling of 171311042 in words is "one hundred seventy-one million, three hundred eleven thousand, forty-two".