1209104 has 20 divisors (see below), whose sum is σ = 2523276. Its totient is φ = 557952.

The previous prime is 1209083. The next prime is 1209107. The reversal of 1209104 is 4019021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 490000 + 719104 = 700^2 + 848^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1209107) 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, 2699 + ... + 3114.

2^1209104 is an apocalyptic number.

It is an amenable number.

1209104 is an abundant number, since it is smaller than the sum of its proper divisors (1314172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1209104 is a wasteful number, since it uses less digits than its factorization.

1209104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834 (or 5828 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1209104 is about 1099.5926518489. The cubic root of 1209104 is about 106.5339147133.

The spelling of 1209104 in words is "one million, two hundred nine thousand, one hundred four".