100459505 has 16 divisors (see below), whose sum is σ = 123037824. Its totient is φ = 78727680.

The previous prime is 100459483. The next prime is 100459507. The reversal of 100459505 is 505954001.

It is not a de Polignac number, because 100459505 - 2¹⁰ = 100458481 is a prime.

It is a super-2 number, since 2×100459505² = 20184224289690050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100459507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48950 + ... + 50960.

It is an arithmetic number, because the mean of its divisors is an integer number (7689864).

Almost surely, 2^100459505 is an apocalyptic number.

It is an amenable number.

100459505 is a deficient number, since it is larger than the sum of its proper divisors (22578319).

100459505 is a wasteful number, since it uses less digits than its factorization.

100459505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 100459505 is about 10022.9489173596. The cubic root of 100459505 is about 464.8687416166.

The spelling of 100459505 in words is "one hundred million, four hundred fifty-nine thousand, five hundred five".