100243456 has 24 divisors (see below), whose sum is σ = 200442060. Its totient is φ = 50120704.

The previous prime is 100243439. The next prime is 100243463. The reversal of 100243456 is 654342001.

It is a self number, because there is not a number n which added to its sum of digits gives 100243456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22426 + ... + 26521.

Almost surely, 2^100243456 is an apocalyptic number.

100243456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100243456 is a deficient number, since it is larger than the sum of its proper divisors (100198604).

100243456 is an frugal number, since it uses more digits than its factorization.

100243456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48969 (or 48949 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 100243456 is about 10012.1654001520. The cubic root of 100243456 is about 464.5352523124.

Adding to 100243456 its reverse (654342001), we get a palindrome (754585457).

The spelling of 100243456 in words is "one hundred million, two hundred forty-three thousand, four hundred fifty-six".