2603453 has 4 divisors (see below), whose sum is σ = 2606688. Its totient is φ = 2600220.

The previous prime is 2603443. The next prime is 2603467. The reversal of 2603453 is 3543062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3543062 = 2 ⋅1771531.

It is a cyclic number.

It is not a de Polignac number, because 2603453 - 2⁶ = 2603389 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 (2603443) 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, 650 + ... + 2372.

It is an arithmetic number, because the mean of its divisors is an integer number (651672).

2^2603453 is an apocalyptic number.

It is an amenable number.

2603453 is a deficient number, since it is larger than the sum of its proper divisors (3235).

2603453 is a wasteful number, since it uses less digits than its factorization.

2603453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2603453 is about 1613.5219242390. The cubic root of 2603453 is about 137.5677330202.

The spelling of 2603453 in words is "two million, six hundred three thousand, four hundred fifty-three".