104549409 has 6 divisors (see below), whose sum is σ = 151015826. Its totient is φ = 69699600.

The previous prime is 104549387. The next prime is 104549411. The reversal of 104549409 is 904945401.

It is a happy number.

104549409 is a `hidden beast` number, since 104 + 549 + 4 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84272400 + 20277009 = 9180^2 + 4503^2 .

It is not a de Polignac number, because 104549409 - 2¹¹ = 104547361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104549909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5808292 + ... + 5808309.

Almost surely, 2^104549409 is an apocalyptic number.

It is an amenable number.

104549409 is a deficient number, since it is larger than the sum of its proper divisors (46466417).

104549409 is a wasteful number, since it uses less digits than its factorization.

104549409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11616607 (or 11616604 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 104549409 is about 10224.9405377244. The cubic root of 104549409 is about 471.0935889862.

The spelling of 104549409 in words is "one hundred four million, five hundred forty-nine thousand, four hundred nine".