12401609 has 8 divisors (see below), whose sum is σ = 13564128. Its totient is φ = 11244960.

The previous prime is 12401593. The next prime is 12401671. The reversal of 12401609 is 90610421.

It is a happy number.

12401609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12401609 - 2⁴ = 12401593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3794 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (1695516).

Almost surely, 2^12401609 is an apocalyptic number.

It is an amenable number.

12401609 is a deficient number, since it is larger than the sum of its proper divisors (1162519).

12401609 is a wasteful number, since it uses less digits than its factorization.

12401609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12401609 is about 3521.5918275689. The cubic root of 12401609 is about 231.4689162395.

The spelling of 12401609 in words is "twelve million, four hundred one thousand, six hundred nine".