2148403 has 2 divisors, whose sum is σ = 2148404. Its totient is φ = 2148402.

The previous prime is 2148401. The next prime is 2148437. The reversal of 2148403 is 3048412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148403 - 2¹ = 2148401 is a prime.

Together with 2148401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2148401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074201 + 1074202.

It is an arithmetic number, because the mean of its divisors is an integer number (1074202).

2^2148403 is an apocalyptic number.

2148403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148403 is an equidigital number, since it uses as much as digits as its factorization.

2148403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2148403 is about 1465.7431562180. The cubic root of 2148403 is about 129.0343237391.

Subtracting 2148403 from its reverse (3048412), we obtain a palindrome (900009).

The spelling of 2148403 in words is "two million, one hundred forty-eight thousand, four hundred three".