171138141 has 24 divisors (see below), whose sum is σ = 254741760. Its totient is φ = 110644800.

The previous prime is 171138127. The next prime is 171138169. The reversal of 171138141 is 141831171.

It is not a de Polignac number, because 171138141 - 2⁵ = 171138109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171138181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64756 + ... + 67346.

It is an arithmetic number, because the mean of its divisors is an integer number (10614240).

Almost surely, 2^171138141 is an apocalyptic number.

It is an amenable number.

171138141 is a deficient number, since it is larger than the sum of its proper divisors (83603619).

171138141 is a wasteful number, since it uses less digits than its factorization.

171138141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2814 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 171138141 is about 13081.9777174554. The cubic root of 171138141 is about 555.1993342907.

The spelling of 171138141 in words is "one hundred seventy-one million, one hundred thirty-eight thousand, one hundred forty-one".