2148871 has 4 divisors (see below), whose sum is σ = 2223000. Its totient is φ = 2074744.

The previous prime is 2148869. The next prime is 2148877. The reversal of 2148871 is 1788412.

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 2148871 - 2¹ = 2148869 is a prime.

It is a Duffinian number.

2148871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148877) 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, 37021 + ... + 37078.

It is an arithmetic number, because the mean of its divisors is an integer number (555750).

2^2148871 is an apocalyptic number.

2148871 is a deficient number, since it is larger than the sum of its proper divisors (74129).

2148871 is an equidigital number, since it uses as much as digits as its factorization.

2148871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74128.

The product of its digits is 3584, while the sum is 31.

The square root of 2148871 is about 1465.9027935030. The cubic root of 2148871 is about 129.0436925089.

The spelling of 2148871 in words is "two million, one hundred forty-eight thousand, eight hundred seventy-one".