2103106545 has 48 divisors (see below), whose sum is σ = 3906161280. Its totient is φ = 1071585504.

The previous prime is 2103106519. The next prime is 2103106553. The reversal of 2103106545 is 5456013012.

2103106545 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 1 + 0 + 654 + 5 = 666.

It is not a de Polignac number, because 2103106545 - 2⁸ = 2103106289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2555004 + ... + 2555826.

It is an arithmetic number, because the mean of its divisors is an integer number (81378360).

Almost surely, 2^2103106545 is an apocalyptic number.

It is an amenable number.

2103106545 is a deficient number, since it is larger than the sum of its proper divisors (1803054735).

2103106545 is an frugal number, since it uses more digits than its factorization.

2103106545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2103106545 is about 45859.6396082656. The cubic root of 2103106545 is about 1281.2103105056.

Adding to 2103106545 its reverse (5456013012), we get a palindrome (7559119557).

The spelling of 2103106545 in words is "two billion, one hundred three million, one hundred six thousand, five hundred forty-five".