171132242 has 8 divisors (see below), whose sum is σ = 258117132. Its totient is φ = 85093200.

The previous prime is 171132211. The next prime is 171132263. The reversal of 171132242 is 242231171.

It can be written as a sum of positive squares in 2 ways, for example, as 166384201 + 4748041 = 12899^2 + 2179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236009 + ... + 236732.

Almost surely, 2^171132242 is an apocalyptic number.

171132242 is a deficient number, since it is larger than the sum of its proper divisors (86984890).

171132242 is a wasteful number, since it uses less digits than its factorization.

171132242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472924.

The product of its digits is 672, while the sum is 23.

The square root of 171132242 is about 13081.7522526610. The cubic root of 171132242 is about 555.1929551195.

The spelling of 171132242 in words is "one hundred seventy-one million, one hundred thirty-two thousand, two hundred forty-two".