2143562 has 8 divisors (see below), whose sum is σ = 3293892. Its totient is φ = 1045600.

The previous prime is 2143543. The next prime is 2143567. The reversal of 2143562 is 2653412.

2143562 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 2076481 + 67081 = 1441^2 + 259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2143567) 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, 12989 + ... + 13152.

2^2143562 is an apocalyptic number.

2143562 is a deficient number, since it is larger than the sum of its proper divisors (1150330).

2143562 is a wasteful number, since it uses less digits than its factorization.

2143562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26184.

The product of its digits is 1440, while the sum is 23.

The square root of 2143562 is about 1464.0908441760. The cubic root of 2143562 is about 128.9373331018.

Adding to 2143562 its reverse (2653412), we get a palindrome (4796974).

The spelling of 2143562 in words is "two million, one hundred forty-three thousand, five hundred sixty-two".