171479942 has 16 divisors (see below), whose sum is σ = 259483392. Its totient is φ = 84988680.

The previous prime is 171479939. The next prime is 171479951. The reversal of 171479942 is 249974171.

It is a junction number, because it is equal to n+sod(n) for n = 171479893 and 171479902.

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, 230423 + ... + 231165.

It is an arithmetic number, because the mean of its divisors is an integer number (16217712).

Almost surely, 2^171479942 is an apocalyptic number.

171479942 is a deficient number, since it is larger than the sum of its proper divisors (88003450).

171479942 is a wasteful number, since it uses less digits than its factorization.

171479942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603.

The product of its digits is 127008, while the sum is 44.

The square root of 171479942 is about 13095.0350133171. The cubic root of 171479942 is about 555.5687074190.

The spelling of 171479942 in words is "one hundred seventy-one million, four hundred seventy-nine thousand, nine hundred forty-two".