2991000045 has 32 divisors (see below), whose sum is σ = 5495431680. Its totient is φ = 1373855040.

The previous prime is 2991000011. The next prime is 2991000059. The reversal of 2991000045 is 5400001992.

It is a happy number.

2991000045 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2991000045 - 2¹⁰ = 2990999021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2990999976 and 2991000021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473899 + ... + 480168.

It is an arithmetic number, because the mean of its divisors is an integer number (171732240).

Almost surely, 2^2991000045 is an apocalyptic number.

It is an amenable number.

2991000045 is a deficient number, since it is larger than the sum of its proper divisors (2504431635).

2991000045 is a wasteful number, since it uses less digits than its factorization.

2991000045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954105.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2991000045 is about 54690.0360669108. The cubic root of 2991000045 is about 1440.8058833047.

The spelling of 2991000045 in words is "two billion, nine hundred ninety-one million, forty-five", and thus it is an aban number.