100859540 has 12 divisors (see below), whose sum is σ = 211805076. Its totient is φ = 40343808.

The previous prime is 100859527. The next prime is 100859567. The reversal of 100859540 is 45958001.

It can be written as a sum of positive squares in 2 ways, for example, as 11519236 + 89340304 = 3394^2 + 9452^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100859497 and 100859506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521469 + ... + 2521508.

It is an arithmetic number, because the mean of its divisors is an integer number (17650423).

Almost surely, 2^100859540 is an apocalyptic number.

100859540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100859540 is an abundant number, since it is smaller than the sum of its proper divisors (110945536).

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

100859540 is a wasteful number, since it uses less digits than its factorization.

100859540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042986 (or 5042984 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 100859540 is about 10042.8850436516. The cubic root of 100859540 is about 465.4849682661.

The spelling of 100859540 in words is "one hundred million, eight hundred fifty-nine thousand, five hundred forty".