2143572 has 24 divisors (see below), whose sum is σ = 5072256. Its totient is φ = 704448.

The previous prime is 2143571. The next prime is 2143573. The reversal of 2143572 is 2753412.

It is an interprime number because it is at equal distance from previous prime (2143571) and next prime (2143573).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (211344).

2^2143572 is an apocalyptic number.

It is an amenable number.

2143572 is an abundant number, since it is smaller than the sum of its proper divisors (2928684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143572 is a wasteful number, since it uses less digits than its factorization.

2143572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527 (or 2525 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 2143572 is about 1464.0942592607. The cubic root of 2143572 is about 128.9375336048.

Adding to 2143572 its reverse (2753412), we get a palindrome (4896984).

The spelling of 2143572 in words is "two million, one hundred forty-three thousand, five hundred seventy-two".