2103545533 has 4 divisors (see below), whose sum is σ = 2138029948. Its totient is φ = 2069061120.

The previous prime is 2103545513. The next prime is 2103545573. The reversal of 2103545533 is 3355453012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1219196889 + 884348644 = 34917^2 + 29738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103545533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103545495 and 2103545504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103545513) 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 3 ways as a sum of consecutive naturals, for example, 17242116 + ... + 17242237.

It is an arithmetic number, because the mean of its divisors is an integer number (534507487).

Almost surely, 2^2103545533 is an apocalyptic number.

It is an amenable number.

2103545533 is a deficient number, since it is larger than the sum of its proper divisors (34484415).

2103545533 is an equidigital number, since it uses as much as digits as its factorization.

2103545533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34484414.

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 2103545533 is about 45864.4255714601. The cubic root of 2103545533 is about 1281.2994479810.

Adding to 2103545533 its reverse (3355453012), we get a palindrome (5458998545).

The spelling of 2103545533 in words is "two billion, one hundred three million, five hundred forty-five thousand, five hundred thirty-three".