100443743437 has 4 divisors (see below), whose sum is σ = 100444649500. Its totient is φ = 100442837376.

The previous prime is 100443743431. The next prime is 100443743459. The reversal of 100443743437 is 734347344001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 65509890601 + 34933852836 = 255949^2 + 186906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100443743437 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 100443743437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100443743431) 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, 259062 + ... + 517687.

It is an arithmetic number, because the mean of its divisors is an integer number (25111162375).

Almost surely, 2^100443743437 is an apocalyptic number.

It is an amenable number.

100443743437 is a deficient number, since it is larger than the sum of its proper divisors (906063).

100443743437 is an equidigital number, since it uses as much as digits as its factorization.

100443743437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906062.

The product of its (nonzero) digits is 338688, while the sum is 40.

The spelling of 100443743437 in words is "one hundred billion, four hundred forty-three million, seven hundred forty-three thousand, four hundred thirty-seven".