171994942 has 16 divisors (see below), whose sum is σ = 295256160. Its totient is φ = 73610208.

The previous prime is 171994931. The next prime is 171994997. The reversal of 171994942 is 249499171.

171994942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 171994892 and 171994901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2484 + ... + 18712.

It is an arithmetic number, because the mean of its divisors is an integer number (18453510).

Almost surely, 2^171994942 is an apocalyptic number.

171994942 is a deficient number, since it is larger than the sum of its proper divisors (123261218).

171994942 is a wasteful number, since it uses less digits than its factorization.

171994942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16995.

The product of its digits is 163296, while the sum is 46.

The square root of 171994942 is about 13114.6842127441. The cubic root of 171994942 is about 556.1243252336.

The spelling of 171994942 in words is "one hundred seventy-one million, nine hundred ninety-four thousand, nine hundred forty-two".