202103453 has 4 divisors (see below), whose sum is σ = 202157760. Its totient is φ = 202049148.

The previous prime is 202103449. The next prime is 202103467. The reversal of 202103453 is 354301202.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 354301202 = 2 ⋅177150601.

It is a cyclic number.

It is not a de Polignac number, because 202103453 - 2² = 202103449 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 (202103653) 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, 21125 + ... + 29162.

It is an arithmetic number, because the mean of its divisors is an integer number (50539440).

Almost surely, 2^202103453 is an apocalyptic number.

It is an amenable number.

202103453 is a deficient number, since it is larger than the sum of its proper divisors (54307).

202103453 is an equidigital number, since it uses as much as digits as its factorization.

202103453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54306.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 202103453 is about 14216.3094015289. The cubic root of 202103453 is about 586.8465798855.

Adding to 202103453 its reverse (354301202), we get a palindrome (556404655).

The spelling of 202103453 in words is "two hundred two million, one hundred three thousand, four hundred fifty-three".