100543056 has 20 divisors (see below), whose sum is σ = 259736352. Its totient is φ = 33514336.

The previous prime is 100543043. The next prime is 100543057. The reversal of 100543056 is 650345001.

It is a super-2 number, since 2×100543056² = 20217812219638272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100543057) 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, 1047276 + ... + 1047371.

Almost surely, 2^100543056 is an apocalyptic number.

100543056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100543056 is an abundant number, since it is smaller than the sum of its proper divisors (159193296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100543056 is a wasteful number, since it uses less digits than its factorization.

100543056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094658 (or 2094652 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 100543056 is about 10027.1160360295. The cubic root of 100543056 is about 464.9975812107.

Adding to 100543056 its reverse (650345001), we get a palindrome (750888057).

The spelling of 100543056 in words is "one hundred million, five hundred forty-three thousand, fifty-six".