491107601 has 8 divisors (see below), whose sum is σ = 502845024. Its totient is φ = 479384640.

The previous prime is 491107579. The next prime is 491107609. The reversal of 491107601 is 106701194.

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

It is not a de Polignac number, because 491107601 - 2¹⁸ = 490845457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491107609) 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, 99545 + ... + 104361.

It is an arithmetic number, because the mean of its divisors is an integer number (62855628).

Almost surely, 2^491107601 is an apocalyptic number.

It is an amenable number.

491107601 is a deficient number, since it is larger than the sum of its proper divisors (11737423).

491107601 is a wasteful number, since it uses less digits than its factorization.

491107601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 491107601 is about 22160.9476557299. The cubic root of 491107601 is about 788.9670851455.

Adding to 491107601 its reverse (106701194), we get a palindrome (597808795).

The spelling of 491107601 in words is "four hundred ninety-one million, one hundred seven thousand, six hundred one".