172344319 has 12 divisors (see below), whose sum is σ = 200771784. Its totient is φ = 147510384.

The previous prime is 172344311. The next prime is 172344329. The reversal of 172344319 is 913443271.

It is not a de Polignac number, because 172344319 - 2³ = 172344311 is a prime.

It is a super-2 number, since 2×172344319² = 59405128583147522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172344311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38397 + ... + 42649.

It is an arithmetic number, because the mean of its divisors is an integer number (16730982).

Almost surely, 2^172344319 is an apocalyptic number.

172344319 is a deficient number, since it is larger than the sum of its proper divisors (28427465).

172344319 is an equidigital number, since it uses as much as digits as its factorization.

172344319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5094 (or 5087 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 172344319 is about 13127.9975243751. The cubic root of 172344319 is about 556.5006262931.

The spelling of 172344319 in words is "one hundred seventy-two million, three hundred forty-four thousand, three hundred nineteen".