1151143 has 4 divisors (see below), whose sum is σ = 1315600. Its totient is φ = 986688.

The previous prime is 1151141. The next prime is 1151147. The reversal of 1151143 is 3411511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3411511 = 37 ⋅92203.

It is a cyclic number.

It is not a de Polignac number, because 1151143 - 2¹ = 1151141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151141) 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, 82218 + ... + 82231.

It is an arithmetic number, because the mean of its divisors is an integer number (328900).

2^1151143 is an apocalyptic number.

1151143 is a deficient number, since it is larger than the sum of its proper divisors (164457).

1151143 is an equidigital number, since it uses as much as digits as its factorization.

1151143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164456.

The product of its digits is 60, while the sum is 16.

The square root of 1151143 is about 1072.9133236194. The cubic root of 1151143 is about 104.8036542342.

Adding to 1151143 its reverse (3411511), we get a palindrome (4562654).

The spelling of 1151143 in words is "one million, one hundred fifty-one thousand, one hundred forty-three".