100900873 has 4 divisors (see below), whose sum is σ = 100944148. Its totient is φ = 100857600.

The previous prime is 100900847. The next prime is 100900879. The reversal of 100900873 is 378009001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378009001 = 43 ⋅8790907.

It can be written as a sum of positive squares in 2 ways, for example, as 88134544 + 12766329 = 9388^2 + 3573^2 .

It is a cyclic number.

It is not a de Polignac number, because 100900873 - 2⁵ = 100900841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100900879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17928 + ... + 22873.

It is an arithmetic number, because the mean of its divisors is an integer number (25236037).

Almost surely, 2^100900873 is an apocalyptic number.

It is an amenable number.

100900873 is a deficient number, since it is larger than the sum of its proper divisors (43275).

100900873 is an equidigital number, since it uses as much as digits as its factorization.

100900873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43274.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 100900873 is about 10044.9426578752. The cubic root of 100900873 is about 465.5485459986.

Adding to 100900873 its reverse (378009001), we get a palindrome (478909874).

The spelling of 100900873 in words is "one hundred million, nine hundred thousand, eight hundred seventy-three".