1143501041 has 4 divisors (see below), whose sum is σ = 1144300452. Its totient is φ = 1142701632.

The previous prime is 1143500957. The next prime is 1143501049. The reversal of 1143501041 is 1401053411.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1053327025 + 90174016 = 32455^2 + 9496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143501041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143501049) 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, 397556 + ... + 400421.

It is an arithmetic number, because the mean of its divisors is an integer number (286075113).

Almost surely, 2^1143501041 is an apocalyptic number.

It is an amenable number.

1143501041 is a deficient number, since it is larger than the sum of its proper divisors (799411).

1143501041 is an equidigital number, since it uses as much as digits as its factorization.

1143501041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799410.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1143501041 is about 33815.6922300875. The cubic root of 1143501041 is about 1045.7122319646.

Adding to 1143501041 its reverse (1401053411), we get a palindrome (2544554452).

The spelling of 1143501041 in words is "one billion, one hundred forty-three million, five hundred one thousand, forty-one".