2148909 has 8 divisors (see below), whose sum is σ = 3274560. Its totient is φ = 1227936.

The previous prime is 2148907. The next prime is 2148947. The reversal of 2148909 is 9098412.

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

It is not a de Polignac number, because 2148909 - 2¹ = 2148907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2148909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148907) 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, 51144 + ... + 51185.

It is an arithmetic number, because the mean of its divisors is an integer number (409320).

2^2148909 is an apocalyptic number.

It is an amenable number.

2148909 is a deficient number, since it is larger than the sum of its proper divisors (1125651).

2148909 is a wasteful number, since it uses less digits than its factorization.

2148909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102339.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 2148909 is about 1465.9157547417. The cubic root of 2148909 is about 129.0444531612.

The spelling of 2148909 in words is "two million, one hundred forty-eight thousand, nine hundred nine".