1153040143 has 4 divisors (see below), whose sum is σ = 1177572960. Its totient is φ = 1128507328.

The previous prime is 1153040131. The next prime is 1153040179. The reversal of 1153040143 is 3410403511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1153040143 - 2⁵ = 1153040111 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 (1153047143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12266338 + ... + 12266431.

It is an arithmetic number, because the mean of its divisors is an integer number (294393240).

Almost surely, 2^1153040143 is an apocalyptic number.

1153040143 is a deficient number, since it is larger than the sum of its proper divisors (24532817).

1153040143 is an equidigital number, since it uses as much as digits as its factorization.

1153040143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24532816.

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

The square root of 1153040143 is about 33956.4447932937. Note that the first 3 decimals coincide. The cubic root of 1153040143 is about 1048.6119657630.

Adding to 1153040143 its reverse (3410403511), we get a palindrome (4563443654).

The spelling of 1153040143 in words is "one billion, one hundred fifty-three million, forty thousand, one hundred forty-three".