2103561453 has 32 divisors (see below), whose sum is σ = 3409330176. Its totient is φ = 1126211328.

The previous prime is 2103561437. The next prime is 2103561529. The reversal of 2103561453 is 3541653012.

It is not a de Polignac number, because 2103561453 - 2⁴ = 2103561437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2103561453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103361453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66400 + ... + 92822.

It is an arithmetic number, because the mean of its divisors is an integer number (106541568).

Almost surely, 2^2103561453 is an apocalyptic number.

It is an amenable number.

2103561453 is a deficient number, since it is larger than the sum of its proper divisors (1305768723).

2103561453 is a wasteful number, since it uses less digits than its factorization.

2103561453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26673.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2103561453 is about 45864.5991261234. The cubic root of 2103561453 is about 1281.3026803388.

The spelling of 2103561453 in words is "two billion, one hundred three million, five hundred sixty-one thousand, four hundred fifty-three".