2148511 has 8 divisors (see below), whose sum is σ = 2324160. Its totient is φ = 1978368.

The previous prime is 2148491. The next prime is 2148527. The reversal of 2148511 is 1158412.

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 2148511 - 2⁷ = 2148383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148011) 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, 546 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (290520).

2^2148511 is an apocalyptic number.

2148511 is a deficient number, since it is larger than the sum of its proper divisors (175649).

2148511 is a wasteful number, since it uses less digits than its factorization.

2148511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753.

The product of its digits is 320, while the sum is 22.

The square root of 2148511 is about 1465.7799971346. The cubic root of 2148511 is about 129.0364858836.

Subtracting from 2148511 its reverse (1158412), we obtain a palindrome (990099).

The spelling of 2148511 in words is "two million, one hundred forty-eight thousand, five hundred eleven".