100244861 has 4 divisors (see below), whose sum is σ = 100428672. Its totient is φ = 100061052.

The previous prime is 100244849. The next prime is 100244863. The reversal of 100244861 is 168442001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100244861 - 2¹⁰ = 100243837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100244861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100244863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91085 + ... + 92178.

It is an arithmetic number, because the mean of its divisors is an integer number (25107168).

Almost surely, 2^100244861 is an apocalyptic number.

It is an amenable number.

100244861 is a deficient number, since it is larger than the sum of its proper divisors (183811).

100244861 is an equidigital number, since it uses as much as digits as its factorization.

100244861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183810.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 100244861 is about 10012.2355645480. The cubic root of 100244861 is about 464.5374225920.

Adding to 100244861 its reverse (168442001), we get a palindrome (268686862).

The spelling of 100244861 in words is "one hundred million, two hundred forty-four thousand, eight hundred sixty-one".