2143115570 has 16 divisors (see below), whose sum is σ = 3863061720. Its totient is φ = 856034304.

The previous prime is 2143115567. The next prime is 2143115609. The reversal of 2143115570 is 755113412.

It can be written as a sum of positive squares in 4 ways, for example, as 865124569 + 1277991001 = 29413^2 + 35749^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144047 + ... + 158226.

Almost surely, 2^2143115570 is an apocalyptic number.

2143115570 is a deficient number, since it is larger than the sum of its proper divisors (1719946150).

2143115570 is a wasteful number, since it uses less digits than its factorization.

2143115570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302989.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 2143115570 is about 46293.7962366449. The cubic root of 2143115570 is about 1289.2838141455.

Adding to 2143115570 its reverse (755113412), we get a palindrome (2898228982).

The spelling of 2143115570 in words is "two billion, one hundred forty-three million, one hundred fifteen thousand, five hundred seventy".