2145305003 has 2 divisors, whose sum is σ = 2145305004. Its totient is φ = 2145305002.

The previous prime is 2145304999. The next prime is 2145305017. The reversal of 2145305003 is 3005035412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2145305003 - 2² = 2145304999 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2145305003.

It is not a weakly prime, because it can be changed into another prime (2145305053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072652501 + 1072652502.

It is an arithmetic number, because the mean of its divisors is an integer number (1072652502).

Almost surely, 2^2145305003 is an apocalyptic number.

2145305003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145305003 is an equidigital number, since it uses as much as digits as its factorization.

2145305003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2145305003 is about 46317.4373535497. The cubic root of 2145305003 is about 1289.7227140730.

The spelling of 2145305003 in words is "two billion, one hundred forty-five million, three hundred five thousand, three".