2143602056 has 16 divisors (see below), whose sum is σ = 4027979340. Its totient is φ = 1069474240.

The previous prime is 2143602053. The next prime is 2143602061. The reversal of 2143602056 is 6502063412.

It can be written as a sum of positive squares in 2 ways, for example, as 2021941156 + 121660900 = 44966^2 + 11030^2 .

It is not an unprimeable number, because it can be changed into a prime (2143602053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286931 + ... + 294306.

Almost surely, 2^2143602056 is an apocalyptic number.

It is an amenable number.

2143602056 is a deficient number, since it is larger than the sum of its proper divisors (1884377284).

2143602056 is a wasteful number, since it uses less digits than its factorization.

2143602056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581704 (or 581700 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2143602056 is about 46299.0502710369. The cubic root of 2143602056 is about 1289.3813623258.

Adding to 2143602056 its reverse (6502063412), we get a palindrome (8645665468).

The spelling of 2143602056 in words is "two billion, one hundred forty-three million, six hundred two thousand, fifty-six".