172132229 has 8 divisors (see below), whose sum is σ = 181315680. Its totient is φ = 162961200.

The previous prime is 172132193. The next prime is 172132241. The reversal of 172132229 is 922231271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172132229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172132729) by changing a digit.

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, 43139 + ... + 46959.

It is an arithmetic number, because the mean of its divisors is an integer number (22664460).

Almost surely, 2^172132229 is an apocalyptic number.

172132229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

172132229 is a deficient number, since it is larger than the sum of its proper divisors (9183451).

172132229 is a wasteful number, since it uses less digits than its factorization.

172132229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211.

The product of its digits is 3024, while the sum is 29.

The square root of 172132229 is about 13119.9172634586. The cubic root of 172132229 is about 556.2722527141.

The spelling of 172132229 in words is "one hundred seventy-two million, one hundred thirty-two thousand, two hundred twenty-nine".