172140716 has 24 divisors (see below), whose sum is σ = 333140304. Its totient is φ = 77172480.

The previous prime is 172140679. The next prime is 172140751. The reversal of 172140716 is 617041271.

It is a super-2 number, since 2×172140716² = 59264852209985312, which contains 22 as substring.

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, 23585 + ... + 30008.

It is an arithmetic number, because the mean of its divisors is an integer number (13880846).

Almost surely, 2^172140716 is an apocalyptic number.

It is an amenable number.

172140716 is a deficient number, since it is larger than the sum of its proper divisors (160999588).

172140716 is a wasteful number, since it uses less digits than its factorization.

172140716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53681 (or 53679 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 172140716 is about 13120.2406990116. The cubic root of 172140716 is about 556.2813949204.

Adding to 172140716 its reverse (617041271), we get a palindrome (789181987).

The spelling of 172140716 in words is "one hundred seventy-two million, one hundred forty thousand, seven hundred sixteen".