2145044315 has 4 divisors (see below), whose sum is σ = 2574053184. Its totient is φ = 1716035448.

The previous prime is 2145044227. The next prime is 2145044339. The reversal of 2145044315 is 5134405412.

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 2145044315 - 2⁸ = 2145044059 is a prime.

It is a super-2 number, since 2×2145044315² = 9202430226627638450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214504427 + ... + 214504436.

It is an arithmetic number, because the mean of its divisors is an integer number (643513296).

Almost surely, 2^2145044315 is an apocalyptic number.

2145044315 is a deficient number, since it is larger than the sum of its proper divisors (429008869).

2145044315 is an equidigital number, since it uses as much as digits as its factorization.

2145044315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429008868.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2145044315 is about 46314.6231227244. The cubic root of 2145044315 is about 1289.6704714853.

Adding to 2145044315 its reverse (5134405412), we get a palindrome (7279449727).

The spelling of 2145044315 in words is "two billion, one hundred forty-five million, forty-four thousand, three hundred fifteen".