12148609 has 8 divisors (see below), whose sum is σ = 13311360. Its totient is φ = 10995600.

The previous prime is 12148603. The next prime is 12148613. The reversal of 12148609 is 90684121.

It is a happy number.

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

It is not a de Polignac number, because 12148609 - 2³ = 12148601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12148601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 4939.

It is an arithmetic number, because the mean of its divisors is an integer number (1663920).

Almost surely, 2^12148609 is an apocalyptic number.

It is an amenable number.

12148609 is a deficient number, since it is larger than the sum of its proper divisors (1162751).

12148609 is a wasteful number, since it uses less digits than its factorization.

12148609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12148609 is about 3485.4854755113. The cubic root of 12148609 is about 229.8840562440.

The spelling of 12148609 in words is "twelve million, one hundred forty-eight thousand, six hundred nine".