2143345515 has 16 divisors (see below), whose sum is σ = 3477655296. Its totient is φ = 1127016800.

The previous prime is 2143345507. The next prime is 2143345537. The reversal of 2143345515 is 5155433412.

It is not a de Polignac number, because 2143345515 - 2³ = 2143345507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005201 + ... + 1007330.

It is an arithmetic number, because the mean of its divisors is an integer number (217353456).

Almost surely, 2^2143345515 is an apocalyptic number.

2143345515 is a deficient number, since it is larger than the sum of its proper divisors (1334309781).

2143345515 is a wasteful number, since it uses less digits than its factorization.

2143345515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012610.

The product of its digits is 36000, while the sum is 33.

The square root of 2143345515 is about 46296.2797101452. The cubic root of 2143345515 is about 1289.3299236147.

Adding to 2143345515 its reverse (5155433412), we get a palindrome (7298778927).

The spelling of 2143345515 in words is "two billion, one hundred forty-three million, three hundred forty-five thousand, five hundred fifteen".