2045203043 has 4 divisors (see below), whose sum is σ = 2202526368. Its totient is φ = 1887879720.

The previous prime is 2045202983. The next prime is 2045203063. The reversal of 2045203043 is 3403025402.

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

It is a cyclic number.

It is not a de Polignac number, because 2045203043 - 2¹⁸ = 2044940899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045203063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78661643 + ... + 78661668.

It is an arithmetic number, because the mean of its divisors is an integer number (550631592).

Almost surely, 2^2045203043 is an apocalyptic number.

2045203043 is a deficient number, since it is larger than the sum of its proper divisors (157323325).

2045203043 is a wasteful number, since it uses less digits than its factorization.

2045203043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157323324.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 2045203043 is about 45223.9211369381. The cubic root of 2045203043 is about 1269.3424671984.

Adding to 2045203043 its reverse (3403025402), we get a palindrome (5448228445).

The spelling of 2045203043 in words is "two billion, forty-five million, two hundred three thousand, forty-three".