172143116 has 24 divisors (see below), whose sum is σ = 317531760. Its totient is φ = 81432000.

The previous prime is 172143113. The next prime is 172143151. The reversal of 172143116 is 611341271.

It is not an unprimeable number, because it can be changed into a prime (172143113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98006 + ... + 99746.

It is an arithmetic number, because the mean of its divisors is an integer number (13230490).

Almost surely, 2^172143116 is an apocalyptic number.

It is an amenable number.

172143116 is a deficient number, since it is larger than the sum of its proper divisors (145388644).

172143116 is a wasteful number, since it uses less digits than its factorization.

172143116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3063 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 172143116 is about 13120.3321604295. The cubic root of 172143116 is about 556.2839801486.

Adding to 172143116 its reverse (611341271), we get a palindrome (783484387).

The spelling of 172143116 in words is "one hundred seventy-two million, one hundred forty-three thousand, one hundred sixteen".