100988443 has 4 divisors (see below), whose sum is σ = 101608168. Its totient is φ = 100368720.

The previous prime is 100988417. The next prime is 100988473. The reversal of 100988443 is 344889001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344889001 = 12491 ⋅27611.

It is a cyclic number.

It is not a de Polignac number, because 100988443 - 2¹³ = 100980251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100988413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309618 + ... + 309943.

It is an arithmetic number, because the mean of its divisors is an integer number (25402042).

Almost surely, 2^100988443 is an apocalyptic number.

100988443 is a deficient number, since it is larger than the sum of its proper divisors (619725).

100988443 is an equidigital number, since it uses as much as digits as its factorization.

100988443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619724.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 100988443 is about 10049.3006224314. The cubic root of 100988443 is about 465.6831873771.

The spelling of 100988443 in words is "one hundred million, nine hundred eighty-eight thousand, four hundred forty-three".