2145013003 has 4 divisors (see below), whose sum is σ = 2451443440. Its totient is φ = 1838582568.

The previous prime is 2145012997. The next prime is 2145013019. The reversal of 2145013003 is 3003105412.

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 2145013003 - 2²¹ = 2142915851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145413003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153215208 + ... + 153215221.

It is an arithmetic number, because the mean of its divisors is an integer number (612860860).

Almost surely, 2^2145013003 is an apocalyptic number.

2145013003 is a deficient number, since it is larger than the sum of its proper divisors (306430437).

2145013003 is an equidigital number, since it uses as much as digits as its factorization.

2145013003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306430436.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2145013003 is about 46314.2850857055. The cubic root of 2145013003 is about 1289.6641961902.

Adding to 2145013003 its reverse (3003105412), we get a palindrome (5148118415).

It can be divided in two parts, 21450 and 13003, that added together give a triangular number (34453 = T₂₆₂).

The spelling of 2145013003 in words is "two billion, one hundred forty-five million, thirteen thousand, three".