179222140 has 12 divisors (see below), whose sum is σ = 376366536. Its totient is φ = 71688848.

The previous prime is 179222137. The next prime is 179222159. The reversal of 179222140 is 41222971.

It is a junction number, because it is equal to n+sod(n) for n = 179222099 and 179222108.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4480534 + ... + 4480573.

It is an arithmetic number, because the mean of its divisors is an integer number (31363878).

Almost surely, 2^179222140 is an apocalyptic number.

179222140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

179222140 is an abundant number, since it is smaller than the sum of its proper divisors (197144396).

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

179222140 is a wasteful number, since it uses less digits than its factorization.

179222140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8961116 (or 8961114 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 179222140 is about 13387.3873477987. The cubic root of 179222140 is about 563.8071159415.

It can be divided in two parts, 1792 and 22140, that added together give a palindrome (23932).

The spelling of 179222140 in words is "one hundred seventy-nine million, two hundred twenty-two thousand, one hundred forty".