104721189 has 4 divisors (see below), whose sum is σ = 139628256. Its totient is φ = 69814124.

The previous prime is 104721187. The next prime is 104721203. The reversal of 104721189 is 981127401.

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 104721189 - 2¹ = 104721187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104721181) 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, 17453529 + ... + 17453534.

It is an arithmetic number, because the mean of its divisors is an integer number (34907064).

Almost surely, 2^104721189 is an apocalyptic number.

It is an amenable number.

104721189 is a deficient number, since it is larger than the sum of its proper divisors (34907067).

104721189 is an equidigital number, since it uses as much as digits as its factorization.

104721189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34907066.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 104721189 is about 10233.3371389787. The cubic root of 104721189 is about 471.3514580547.

The spelling of 104721189 in words is "one hundred four million, seven hundred twenty-one thousand, one hundred eighty-nine".