172144967 has 8 divisors (see below), whose sum is σ = 175835520. Its totient is φ = 168489720.

The previous prime is 172144963. The next prime is 172144969. The reversal of 172144967 is 769441271.

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 172144967 - 2² = 172144963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172144961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1148 + ... + 18590.

It is an arithmetic number, because the mean of its divisors is an integer number (21979440).

Almost surely, 2^172144967 is an apocalyptic number.

172144967 is a deficient number, since it is larger than the sum of its proper divisors (3690553).

172144967 is a wasteful number, since it uses less digits than its factorization.

172144967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17653.

The product of its digits is 84672, while the sum is 41.

The square root of 172144967 is about 13120.4026996125. The cubic root of 172144967 is about 556.2859739895.

The spelling of 172144967 in words is "one hundred seventy-two million, one hundred forty-four thousand, nine hundred sixty-seven".