104437581 has 4 divisors (see below), whose sum is σ = 139250112. Its totient is φ = 69625052.

The previous prime is 104437519. The next prime is 104437601. The reversal of 104437581 is 185734401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104437581 - 2⁶ = 104437517 is a prime.

It is a super-2 number, since 2×104437581² = 21814416650263122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104430581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17406261 + ... + 17406266.

It is an arithmetic number, because the mean of its divisors is an integer number (34812528).

Almost surely, 2^104437581 is an apocalyptic number.

It is an amenable number.

104437581 is a deficient number, since it is larger than the sum of its proper divisors (34812531).

104437581 is an equidigital number, since it uses as much as digits as its factorization.

104437581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34812530.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 104437581 is about 10219.4706810089. The cubic root of 104437581 is about 470.9255655653.

The spelling of 104437581 in words is "one hundred four million, four hundred thirty-seven thousand, five hundred eighty-one".