2002453 has 2 divisors, whose sum is σ = 2002454. Its totient is φ = 2002452.

The previous prime is 2002417. The next prime is 2002459. The reversal of 2002453 is 3542002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1620529 + 381924 = 1273^2 + 618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001226 + 1001227.

It is an arithmetic number, because the mean of its divisors is an integer number (1001227).

2^2002453 is an apocalyptic number.

It is an amenable number.

2002453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002453 is an equidigital number, since it uses as much as digits as its factorization.

2002453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 2002453 is about 1415.0805630776. The cubic root of 2002453 is about 126.0435937172.

Adding to 2002453 its reverse (3542002), we get a palindrome (5544455).

The spelling of 2002453 in words is "two million, two thousand, four hundred fifty-three".