100000291 has 8 divisors (see below), whose sum is σ = 102153744. Its totient is φ = 97868160.

The previous prime is 100000279. The next prime is 100000357. The reversal of 100000291 is 192000001.

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 100000291 - 2⁵ = 100000259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100000231) 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, 4335 + ... + 14791.

It is an arithmetic number, because the mean of its divisors is an integer number (12769218).

Almost surely, 2^100000291 is an apocalyptic number.

100000291 is a deficient number, since it is larger than the sum of its proper divisors (2153453).

100000291 is a wasteful number, since it uses less digits than its factorization.

100000291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 100000291 is about 10000.0145499894. The cubic root of 100000291 is about 464.1593335950.

Adding to 100000291 its reverse (192000001), we get a palindrome (292000292).

The spelling of 100000291 in words is "one hundred million, two hundred ninety-one", and thus it is an aban number.