172402271 has 8 divisors (see below), whose sum is σ = 176639904. Its totient is φ = 168215040.

The previous prime is 172402261. The next prime is 172402301. The reversal of 172402271 is 172204271.

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

It is a cyclic number.

It is not a de Polignac number, because 172402271 - 2¹⁴ = 172385887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172402271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172402261) 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, 5630 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (22079988).

Almost surely, 2^172402271 is an apocalyptic number.

172402271 is a deficient number, since it is larger than the sum of its proper divisors (4237633).

172402271 is an equidigital number, since it uses as much as digits as its factorization.

172402271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25201.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 172402271 is about 13130.2045300140. The cubic root of 172402271 is about 556.5629950642.

The spelling of 172402271 in words is "one hundred seventy-two million, four hundred two thousand, two hundred seventy-one".