100499542 has 16 divisors (see below), whose sum is σ = 177104592. Its totient is φ = 42167520.

The previous prime is 100499527. The next prime is 100499543. The reversal of 100499542 is 245994001.

It is a junction number, because it is equal to n+sod(n) for n = 100499498 and 100499507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100499543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175413 + ... + 175984.

It is an arithmetic number, because the mean of its divisors is an integer number (11069037).

Almost surely, 2^100499542 is an apocalyptic number.

100499542 is a deficient number, since it is larger than the sum of its proper divisors (76605050).

100499542 is a wasteful number, since it uses less digits than its factorization.

100499542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351423.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 100499542 is about 10024.9459848919. The cubic root of 100499542 is about 464.9304894748.

It can be divided in two parts, 10049 and 9542, that added together give a palindrome (19591).

The spelling of 100499542 in words is "one hundred million, four hundred ninety-nine thousand, five hundred forty-two".