2145044715 has 32 divisors (see below), whose sum is σ = 3749331456. Its totient is φ = 1038562560.

The previous prime is 2145044701. The next prime is 2145044719. The reversal of 2145044715 is 5174405412.

It is not a de Polignac number, because 2145044715 - 2⁸ = 2145044459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

2145044715 is a modest number, since divided by 44715 gives 21450 as remainder.

It is not an unprimeable number, because it can be changed into a prime (2145044719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113847 + ... + 131343.

It is an arithmetic number, because the mean of its divisors is an integer number (117166608).

Almost surely, 2^2145044715 is an apocalyptic number.

2145044715 is a deficient number, since it is larger than the sum of its proper divisors (1604286741).

2145044715 is a wasteful number, since it uses less digits than its factorization.

2145044715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18259.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 2145044715 is about 46314.6274410148. The cubic root of 2145044715 is about 1289.6705516497.

The spelling of 2145044715 in words is "two billion, one hundred forty-five million, forty-four thousand, seven hundred fifteen".