171123242 has 16 divisors (see below), whose sum is σ = 262612680. Its totient is φ = 83607552.

The previous prime is 171123233. The next prime is 171123301. The reversal of 171123242 is 242321171.

It can be written as a sum of positive squares in 4 ways, for example, as 171060241 + 63001 = 13079^2 + 251^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10538 + ... + 21290.

Almost surely, 2^171123242 is an apocalyptic number.

171123242 is a deficient number, since it is larger than the sum of its proper divisors (91489438).

171123242 is a wasteful number, since it uses less digits than its factorization.

171123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10937.

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

The square root of 171123242 is about 13081.4082575233. The cubic root of 171123242 is about 555.1832222484.

The spelling of 171123242 in words is "one hundred seventy-one million, one hundred twenty-three thousand, two hundred forty-two".