2043106645 has 16 divisors (see below), whose sum is σ = 2469298032. Its totient is φ = 1622799360.

The previous prime is 2043106633. The next prime is 2043106691. The reversal of 2043106645 is 5466013402.

It can be written as a sum of positive squares in 8 ways, for example, as 586463089 + 1456643556 = 24217^2 + 38166^2 .

It is not a de Polignac number, because 2043106645 - 2⁹ = 2043106133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944365 + ... + 946525.

It is an arithmetic number, because the mean of its divisors is an integer number (154331127).

Almost surely, 2^2043106645 is an apocalyptic number.

It is an amenable number.

2043106645 is a deficient number, since it is larger than the sum of its proper divisors (426191387).

2043106645 is a wasteful number, since it uses less digits than its factorization.

2043106645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2043106645 is about 45200.7372174393. The cubic root of 2043106645 is about 1268.9086134945.

The spelling of 2043106645 in words is "two billion, forty-three million, one hundred six thousand, six hundred forty-five".