104581213 has 4 divisors (see below), whose sum is σ = 114088608. Its totient is φ = 95073820.

The previous prime is 104581199. The next prime is 104581219. The reversal of 104581213 is 312185401.

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 a de Polignac number, because none of the positive numbers 2^k-104581213 is a prime.

It is a super-2 number, since 2×104581213² = 21874460225102738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104581219) 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, 4753681 + ... + 4753702.

It is an arithmetic number, because the mean of its divisors is an integer number (28522152).

Almost surely, 2^104581213 is an apocalyptic number.

It is an amenable number.

104581213 is a deficient number, since it is larger than the sum of its proper divisors (9507395).

104581213 is an equidigital number, since it uses as much as digits as its factorization.

104581213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507394.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 104581213 is about 10226.4956363360. The cubic root of 104581213 is about 471.1413531380.

The spelling of 104581213 in words is "one hundred four million, five hundred eighty-one thousand, two hundred thirteen".