2143485 has 48 divisors (see below), whose sum is σ = 4118400. Its totient is φ = 1026432.

The previous prime is 2143483. The next prime is 2143487. The reversal of 2143485 is 5843412.

2143485 is a nontrivial binomial coefficient, being equal to C(2071, 2).

It is an interprime number because it is at equal distance from previous prime (2143483) and next prime (2143487).

It is not a de Polignac number, because 2143485 - 2¹ = 2143483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19611 + ... + 19719.

It is an arithmetic number, because the mean of its divisors is an integer number (85800).

2^2143485 is an apocalyptic number.

2143485 is the 2070-th triangular number.

It is an amenable number.

2143485 is a deficient number, since it is larger than the sum of its proper divisors (1974915).

2143485 is a wasteful number, since it uses less digits than its factorization.

2143485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 159 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2143485 is about 1464.0645477574. The cubic root of 2143485 is about 128.9357892085.

Adding to 2143485 its reverse (5843412), we get a palindrome (7986897).

It can be divided in two parts, 2143 and 485, that added together give a triangular number (2628 = T₇₂).

The spelling of 2143485 in words is "two million, one hundred forty-three thousand, four hundred eighty-five".