491713158 has 8 divisors (see below), whose sum is σ = 983426328. Its totient is φ = 163904384.

The previous prime is 491713133. The next prime is 491713207. The reversal of 491713158 is 851317194.

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

491713158 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40976091 + ... + 40976102.

It is an arithmetic number, because the mean of its divisors is an integer number (122928291).

Almost surely, 2^491713158 is an apocalyptic number.

491713158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491713158 is a wasteful number, since it uses less digits than its factorization.

491713158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81952198.

The product of its digits is 30240, while the sum is 39.

The square root of 491713158 is about 22174.6061520831. The cubic root of 491713158 is about 789.2912288474.

The spelling of 491713158 in words is "four hundred ninety-one million, seven hundred thirteen thousand, one hundred fifty-eight".