2103453 has 12 divisors (see below), whose sum is σ = 3314688. Its totient is φ = 1274760.

The previous prime is 2103449. The next prime is 2103473. The reversal of 2103453 is 3543012.

2103453 is a `hidden beast` number, since 210 + 3 + 453 = 666.

It is not a de Polignac number, because 2103453 - 2² = 2103449 is a prime.

2103453 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103403) 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, 10525 + ... + 10722.

It is an arithmetic number, because the mean of its divisors is an integer number (276224).

2^2103453 is an apocalyptic number.

It is an amenable number.

2103453 is a deficient number, since it is larger than the sum of its proper divisors (1211235).

2103453 is a wasteful number, since it uses less digits than its factorization.

2103453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21264 (or 21261 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2103453 is about 1450.3285834596. The cubic root of 2103453 is about 128.1280659984.

Adding to 2103453 its reverse (3543012), we get a palindrome (5646465).

It can be divided in two parts, 2103 and 453, that added together give a triangular number (2556 = T₇₁).

The spelling of 2103453 in words is "two million, one hundred three thousand, four hundred fifty-three".