100405079 has 8 divisors (see below), whose sum is σ = 102451920. Its totient is φ = 98369856.

The previous prime is 100405073. The next prime is 100405141. The reversal of 100405079 is 970504001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100405079 - 2⁸ = 100404823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100405073) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15749 + ... + 21185.

It is an arithmetic number, because the mean of its divisors is an integer number (12806490).

Almost surely, 2^100405079 is an apocalyptic number.

100405079 is a deficient number, since it is larger than the sum of its proper divisors (2046841).

100405079 is an equidigital number, since it uses as much as digits as its factorization.

100405079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 100405079 is about 10020.2334803137. The cubic root of 100405079 is about 464.7847757220.

The spelling of 100405079 in words is "one hundred million, four hundred five thousand, seventy-nine".