100456542 has 12 divisors (see below), whose sum is σ = 217655880. Its totient is φ = 33485508.

The previous prime is 100456529. The next prime is 100456561. The reversal of 100456542 is 245654001.

100456542 is a `hidden beast` number, since 1 + 0 + 0 + 4 + 5 + 654 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2790442 + ... + 2790477.

It is an arithmetic number, because the mean of its divisors is an integer number (18137990).

Almost surely, 2^100456542 is an apocalyptic number.

100456542 is an abundant number, since it is smaller than the sum of its proper divisors (117199338).

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

100456542 is a wasteful number, since it uses less digits than its factorization.

100456542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5580927 (or 5580924 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 100456542 is about 10022.8011054794. The cubic root of 100456542 is about 464.8641712190.

The spelling of 100456542 in words is "one hundred million, four hundred fifty-six thousand, five hundred forty-two".