2143701 has 18 divisors (see below), whose sum is σ = 3602742. Its totient is φ = 1224720.

The previous prime is 2143667. The next prime is 2143711. The reversal of 2143701 is 1073412.

2143701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2099601 + 44100 = 1449^2 + 210^2 .

It is not a de Polignac number, because 2143701 - 2⁷ = 2143573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1990 + ... + 2871.

2^2143701 is an apocalyptic number.

2143701 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2143701 is a deficient number, since it is larger than the sum of its proper divisors (1459041).

2143701 is a wasteful number, since it uses less digits than its factorization.

2143701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881 (or 4871 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2143701 is about 1464.1383131385. The cubic root of 2143701 is about 128.9401200365.

The spelling of 2143701 in words is "two million, one hundred forty-three thousand, seven hundred one".