2148503 has 12 divisors (see below), whose sum is σ = 2523960. Its totient is φ = 1823472.

The previous prime is 2148491. The next prime is 2148527. The reversal of 2148503 is 3058412.

It is not a de Polignac number, because 2148503 - 2¹² = 2144407 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 (2148533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7853 + ... + 8121.

It is an arithmetic number, because the mean of its divisors is an integer number (210330).

2^2148503 is an apocalyptic number.

2148503 is a deficient number, since it is larger than the sum of its proper divisors (375457).

2148503 is a wasteful number, since it uses less digits than its factorization.

2148503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2148503 is about 1465.7772682096. Note that the first 3 decimals coincide. The cubic root of 2148503 is about 129.0363257273.

Subtracting 2148503 from its reverse (3058412), we obtain a palindrome (909909).

The spelling of 2148503 in words is "two million, one hundred forty-eight thousand, five hundred three".