1143031541 has 2 divisors, whose sum is σ = 1143031542. Its totient is φ = 1143031540.

The previous prime is 1143031537. The next prime is 1143031559. The reversal of 1143031541 is 1451303411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 841870225 + 301161316 = 29015^2 + 17354^2 .

It is an emirp because it is prime and its reverse (1451303411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1143031541 - 2² = 1143031537 is a prime.

It is a super-2 number, since 2×1143031541² = 2613042207441669362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143031511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571515770 + 571515771.

It is an arithmetic number, because the mean of its divisors is an integer number (571515771).

Almost surely, 2^1143031541 is an apocalyptic number.

It is an amenable number.

1143031541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143031541 is an equidigital number, since it uses as much as digits as its factorization.

1143031541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1143031541 is about 33808.7494740637. The cubic root of 1143031541 is about 1045.5690957879.

Adding to 1143031541 its reverse (1451303411), we get a palindrome (2594334952).

The spelling of 1143031541 in words is "one billion, one hundred forty-three million, thirty-one thousand, five hundred forty-one".