172271433 has 16 divisors (see below), whose sum is σ = 238169600. Its totient is φ = 110643840.

The previous prime is 172271417. The next prime is 172271441. The reversal of 172271433 is 334172271.

It is not a de Polignac number, because 172271433 - 2⁴ = 172271417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172271433.

It is not an unprimeable number, because it can be changed into a prime (172271443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17253 + ... + 25341.

It is an arithmetic number, because the mean of its divisors is an integer number (14885600).

Almost surely, 2^172271433 is an apocalyptic number.

It is an amenable number.

172271433 is a deficient number, since it is larger than the sum of its proper divisors (65898167).

172271433 is a wasteful number, since it uses less digits than its factorization.

172271433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352.

The product of its digits is 7056, while the sum is 30.

The square root of 172271433 is about 13125.2212552779. The cubic root of 172271433 is about 556.4221654845.

The spelling of 172271433 in words is "one hundred seventy-two million, two hundred seventy-one thousand, four hundred thirty-three".