100442734445 has 8 divisors (see below), whose sum is σ = 120535132536. Its totient is φ = 80351620096.

The previous prime is 100442734429. The next prime is 100442734451. The reversal of 100442734445 is 544437244001.

It can be written as a sum of positive squares in 4 ways, for example, as 605061604 + 99837672841 = 24598^2 + 315971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100442734445 - 2⁴ = 100442734429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100442734399 and 100442734408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139472 + ... + 469401.

It is an arithmetic number, because the mean of its divisors is an integer number (15066891567).

Almost surely, 2^100442734445 is an apocalyptic number.

It is an amenable number.

100442734445 is a deficient number, since it is larger than the sum of its proper divisors (20092398091).

100442734445 is an equidigital number, since it uses as much as digits as its factorization.

100442734445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641871.

The product of its (nonzero) digits is 215040, while the sum is 38.

Adding to 100442734445 its reverse (544437244001), we get a palindrome (644879978446).

The spelling of 100442734445 in words is "one hundred billion, four hundred forty-two million, seven hundred thirty-four thousand, four hundred forty-five".