100434043 has 4 divisors (see below), whose sum is σ = 101705440. Its totient is φ = 99162648.

The previous prime is 100434041. The next prime is 100434049. The reversal of 100434043 is 340434001.

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 100434043 - 2¹ = 100434041 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 100434043.

It is not an unprimeable number, because it can be changed into a prime (100434041) 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, 635580 + ... + 635737.

It is an arithmetic number, because the mean of its divisors is an integer number (25426360).

Almost surely, 2^100434043 is an apocalyptic number.

100434043 is a deficient number, since it is larger than the sum of its proper divisors (1271397).

100434043 is an equidigital number, since it uses as much as digits as its factorization.

100434043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271396.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 100434043 is about 10021.6786518028. The cubic root of 100434043 is about 464.8294638066.

Adding to 100434043 its reverse (340434001), we get a palindrome (440868044).

The spelling of 100434043 in words is "one hundred million, four hundred thirty-four thousand, forty-three".