104402189 has 2 divisors, whose sum is σ = 104402190. Its totient is φ = 104402188.

The previous prime is 104402159. The next prime is 104402257. The reversal of 104402189 is 981204401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73788100 + 30614089 = 8590^2 + 5533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104402189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104402119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52201094 + 52201095.

It is an arithmetic number, because the mean of its divisors is an integer number (52201095).

Almost surely, 2^104402189 is an apocalyptic number.

It is an amenable number.

104402189 is a deficient number, since it is larger than the sum of its proper divisors (1).

104402189 is an equidigital number, since it uses as much as digits as its factorization.

104402189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 104402189 is about 10217.7389377494. The cubic root of 104402189 is about 470.8723635138.

The spelling of 104402189 in words is "one hundred four million, four hundred two thousand, one hundred eighty-nine".