100059581 has 16 divisors (see below), whose sum is σ = 106981248. Its totient is φ = 93441600.

The previous prime is 100059559. The next prime is 100059587. The reversal of 100059581 is 185950001.

It is a cyclic number.

It is not a de Polignac number, because 100059581 - 2²⁶ = 32950717 is a prime.

It is a super-2 number, since 2×100059581² = 20023839499791122, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (100059587) 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, 96536 + ... + 97566.

It is an arithmetic number, because the mean of its divisors is an integer number (6686328).

Almost surely, 2^100059581 is an apocalyptic number.

It is an amenable number.

100059581 is a deficient number, since it is larger than the sum of its proper divisors (6921667).

100059581 is a wasteful number, since it uses less digits than its factorization.

100059581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 1800, while the sum is 29.

The square root of 100059581 is about 10002.9786063952. The cubic root of 100059581 is about 464.2510485608.

The spelling of 100059581 in words is "one hundred million, fifty-nine thousand, five hundred eighty-one".