100533540 has 48 divisors (see below), whose sum is σ = 282300480. Its totient is φ = 26732160.

The previous prime is 100533523. The next prime is 100533607. The reversal of 100533540 is 45335001.

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 15 ways as a sum of consecutive naturals, for example, 20530 + ... + 24950.

It is an arithmetic number, because the mean of its divisors is an integer number (5881260).

Almost surely, 2^100533540 is an apocalyptic number.

100533540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100533540 is an abundant number, since it is smaller than the sum of its proper divisors (181766940).

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

100533540 is a wasteful number, since it uses less digits than its factorization.

100533540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812 (or 4810 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 100533540 is about 10026.6415114933. The cubic root of 100533540 is about 464.9829106912.

Adding to 100533540 its reverse (45335001), we get a palindrome (145868541).

The spelling of 100533540 in words is "one hundred million, five hundred thirty-three thousand, five hundred forty".