172980140 has 48 divisors (see below), whose sum is σ = 374601024. Its totient is φ = 67065600.

The previous prime is 172980139. The next prime is 172980193. The reversal of 172980140 is 41089271.

It is a junction number, because it is equal to n+sod(n) for n = 172980097 and 172980106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85622 + ... + 87618.

It is an arithmetic number, because the mean of its divisors is an integer number (7804188).

Almost surely, 2^172980140 is an apocalyptic number.

172980140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172980140 is an abundant number, since it is smaller than the sum of its proper divisors (201620884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172980140 is a wasteful number, since it uses less digits than its factorization.

172980140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 172980140 is about 13152.1914523778. The cubic root of 172980140 is about 557.1841427719.

The spelling of 172980140 in words is "one hundred seventy-two million, nine hundred eighty thousand, one hundred forty".