172471641 has 8 divisors (see below), whose sum is σ = 239960640. Its totient is φ = 109981872.

The previous prime is 172471639. The next prime is 172471657. The reversal of 172471641 is 146174271.

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

It is not a de Polignac number, because 172471641 - 2¹ = 172471639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172471661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249726 + ... + 1249863.

It is an arithmetic number, because the mean of its divisors is an integer number (29995080).

Almost surely, 2^172471641 is an apocalyptic number.

It is an amenable number.

172471641 is a deficient number, since it is larger than the sum of its proper divisors (67488999).

172471641 is a wasteful number, since it uses less digits than its factorization.

172471641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499615.

The product of its digits is 9408, while the sum is 33.

The square root of 172471641 is about 13132.8458835090. The cubic root of 172471641 is about 556.6376336745.

The spelling of 172471641 in words is "one hundred seventy-two million, four hundred seventy-one thousand, six hundred forty-one".