491035111 has 8 divisors (see below), whose sum is σ = 570695040. Its totient is φ = 413753208.

The previous prime is 491035099. The next prime is 491035117. The reversal of 491035111 is 111530194.

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 491035111 - 2⁵ = 491035079 is a prime.

It is a super-2 number, since 2×491035111² = 482230960469564642, 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 (491035117) 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, 594061 + ... + 594886.

It is an arithmetic number, because the mean of its divisors is an integer number (71336880).

Almost surely, 2^491035111 is an apocalyptic number.

491035111 is a deficient number, since it is larger than the sum of its proper divisors (79659929).

491035111 is a wasteful number, since it uses less digits than its factorization.

491035111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189013.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 491035111 is about 22159.3120606214. The cubic root of 491035111 is about 788.9282647064.

The spelling of 491035111 in words is "four hundred ninety-one million, thirty-five thousand, one hundred eleven".