1143927553 has 2 divisors, whose sum is σ = 1143927554. Its totient is φ = 1143927552.

The previous prime is 1143927541. The next prime is 1143927709. The reversal of 1143927553 is 3557293411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 673558209 + 470369344 = 25953^2 + 21688^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143927553 - 2²¹ = 1141830401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143927503) 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, 571963776 + 571963777.

It is an arithmetic number, because the mean of its divisors is an integer number (571963777).

Almost surely, 2^1143927553 is an apocalyptic number.

It is an amenable number.

1143927553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143927553 is an equidigital number, since it uses as much as digits as its factorization.

1143927553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 1143927553 is about 33821.9980633906. The cubic root of 1143927553 is about 1045.8422284576.

The spelling of 1143927553 in words is "one billion, one hundred forty-three million, nine hundred twenty-seven thousand, five hundred fifty-three".