2143136 has 12 divisors (see below), whose sum is σ = 4219362. Its totient is φ = 1071552.

The previous prime is 2143109. The next prime is 2143147. The reversal of 2143136 is 6313412.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 126736 = 1420^2 + 356^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33455 + ... + 33518.

2^2143136 is an apocalyptic number.

It is an amenable number.

2143136 is a deficient number, since it is larger than the sum of its proper divisors (2076226).

2143136 is an equidigital number, since it uses as much as digits as its factorization.

2143136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66983 (or 66975 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2143136 is about 1463.9453541714. The cubic root of 2143136 is about 128.9287910982.

Adding to 2143136 its reverse (6313412), we get a palindrome (8456548).

The spelling of 2143136 in words is "two million, one hundred forty-three thousand, one hundred thirty-six".