1143562 has 16 divisors (see below), whose sum is σ = 2001600. Its totient is φ = 489804.

The previous prime is 1143551. The next prime is 1143563. The reversal of 1143562 is 2653411.

It is not an unprimeable number, because it can be changed into a prime (1143563) 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, 148 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (125100).

2^1143562 is an apocalyptic number.

1143562 is a deficient number, since it is larger than the sum of its proper divisors (858038).

1143562 is an equidigital number, since it uses as much as digits as its factorization.

1143562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690 (or 1676 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1143562 is about 1069.3745835768. The cubic root of 1143562 is about 104.5730813624.

Adding to 1143562 its reverse (2653411), we get a palindrome (3796973).

The spelling of 1143562 in words is "one million, one hundred forty-three thousand, five hundred sixty-two".