2148859 has 4 divisors (see below), whose sum is σ = 2162704. Its totient is φ = 2135016.

The previous prime is 2148857. The next prime is 2148863. The reversal of 2148859 is 9588412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2148859 - 2¹ = 2148857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148857) 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, 6687 + ... + 7000.

It is an arithmetic number, because the mean of its divisors is an integer number (540676).

2^2148859 is an apocalyptic number.

2148859 is a deficient number, since it is larger than the sum of its proper divisors (13845).

2148859 is a wasteful number, since it uses less digits than its factorization.

2148859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13844.

The product of its digits is 23040, while the sum is 37.

The square root of 2148859 is about 1465.8987004565. The cubic root of 2148859 is about 129.0434523010.

The spelling of 2148859 in words is "two million, one hundred forty-eight thousand, eight hundred fifty-nine".