100243450 has 24 divisors (see below), whose sum is σ = 187417692. Its totient is φ = 39889920.

The previous prime is 100243439. The next prime is 100243463. The reversal of 100243450 is 54342001.

It can be written as a sum of positive squares in 6 ways, for example, as 75012921 + 25230529 = 8661^2 + 5023^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4762 + ... + 14938.

Almost surely, 2^100243450 is an apocalyptic number.

100243450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100243450 is a deficient number, since it is larger than the sum of its proper divisors (87174242).

100243450 is a wasteful number, since it uses less digits than its factorization.

100243450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10386 (or 10381 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 100243450 is about 10012.1651005165. The cubic root of 100243450 is about 464.5352430443.

Adding to 100243450 its reverse (54342001), we get a palindrome (154585451).

The spelling of 100243450 in words is "one hundred million, two hundred forty-three thousand, four hundred fifty".