100055443 has 4 divisors (see below), whose sum is σ = 100122328. Its totient is φ = 99988560.

The previous prime is 100055441. The next prime is 100055509. The reversal of 100055443 is 344550001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100055443 - 2¹ = 100055441 is a prime.

It is a super-2 number, since 2×100055443² = 20022183347852498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100055441) 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 3 ways as a sum of consecutive naturals, for example, 31146 + ... + 34207.

It is an arithmetic number, because the mean of its divisors is an integer number (25030582).

Almost surely, 2^100055443 is an apocalyptic number.

100055443 is a deficient number, since it is larger than the sum of its proper divisors (66885).

100055443 is an equidigital number, since it uses as much as digits as its factorization.

100055443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66884.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 100055443 is about 10002.7717658657. The cubic root of 100055443 is about 464.2446487162.

The spelling of 100055443 in words is "one hundred million, fifty-five thousand, four hundred forty-three".