172032261 has 8 divisors (see below), whose sum is σ = 233136864. Its totient is φ = 112807920.

The previous prime is 172032257. The next prime is 172032281. The reversal of 172032261 is 162230271.

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

It is not a de Polignac number, because 172032261 - 2² = 172032257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172032281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469851 + ... + 470216.

It is an arithmetic number, because the mean of its divisors is an integer number (29142108).

Almost surely, 2^172032261 is an apocalyptic number.

It is an amenable number.

172032261 is a deficient number, since it is larger than the sum of its proper divisors (61104603).

172032261 is an equidigital number, since it uses as much as digits as its factorization.

172032261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940131.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 172032261 is about 13116.1069300307. The cubic root of 172032261 is about 556.1645444450.

The spelling of 172032261 in words is "one hundred seventy-two million, thirty-two thousand, two hundred sixty-one".