171248042 has 12 divisors (see below), whose sum is σ = 298810530. Its totient is φ = 73391976.

The previous prime is 171248027. The next prime is 171248071. The reversal of 171248042 is 240842171.

It can be written as a sum of positive squares in only one way, i.e., 108347281 + 62900761 = 10409^2 + 7931^2 .

It is a junction number, because it is equal to n+sod(n) for n = 171247996 and 171248014.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 873617 + ... + 873812.

Almost surely, 2^171248042 is an apocalyptic number.

171248042 is a deficient number, since it is larger than the sum of its proper divisors (127562488).

171248042 is a wasteful number, since it uses less digits than its factorization.

171248042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747445 (or 1747438 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 171248042 is about 13086.1775167541. The cubic root of 171248042 is about 555.3181542980.

The spelling of 171248042 in words is "one hundred seventy-one million, two hundred forty-eight thousand, forty-two".