491172119 has 8 divisors (see below), whose sum is σ = 495659520. Its totient is φ = 486694656.

The previous prime is 491172047. The next prime is 491172127. The reversal of 491172119 is 911271194.

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 491172119 - 2²⁴ = 474394903 is a prime.

It is a super-2 number, since 2×491172119² = 482500100965900322, 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 (491172139) 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, 126227 + ... + 130059.

It is an arithmetic number, because the mean of its divisors is an integer number (61957440).

Almost surely, 2^491172119 is an apocalyptic number.

491172119 is a deficient number, since it is larger than the sum of its proper divisors (4487401).

491172119 is a wasteful number, since it uses less digits than its factorization.

491172119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969.

The product of its digits is 4536, while the sum is 35.

The square root of 491172119 is about 22162.4032767207. The cubic root of 491172119 is about 789.0016331410.

The spelling of 491172119 in words is "four hundred ninety-one million, one hundred seventy-two thousand, one hundred nineteen".