100010491 has 8 divisors (see below), whose sum is σ = 114430464. Its totient is φ = 85623720.

The previous prime is 100010489. The next prime is 100010497. The reversal of 100010491 is 194010001.

It is a happy number.

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

It is not a de Polignac number, because 100010491 - 2¹ = 100010489 is a prime.

It is a super-2 number, since 2×100010491² = 20004196620122162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100010497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465 + ... + 14218.

It is an arithmetic number, because the mean of its divisors is an integer number (14303808).

Almost surely, 2^100010491 is an apocalyptic number.

100010491 is a deficient number, since it is larger than the sum of its proper divisors (14419973).

100010491 is an equidigital number, since it uses as much as digits as its factorization.

100010491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16601.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 100010491 is about 10000.5245362431. The cubic root of 100010491 is about 464.1751144298.

Adding to 100010491 its reverse (194010001), we get a palindrome (294020492).

The spelling of 100010491 in words is "one hundred million, ten thousand, four hundred ninety-one".