1143518983 has 2 divisors, whose sum is σ = 1143518984. Its totient is φ = 1143518982.

The previous prime is 1143518969. The next prime is 1143518989. The reversal of 1143518983 is 3898153411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143518983 - 2¹³ = 1143510791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143518989) 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, 571759491 + 571759492.

It is an arithmetic number, because the mean of its divisors is an integer number (571759492).

Almost surely, 2^1143518983 is an apocalyptic number.

1143518983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143518983 is an equidigital number, since it uses as much as digits as its factorization.

1143518983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 43.

The square root of 1143518983 is about 33815.9575200821. The cubic root of 1143518983 is about 1045.7177011539.

The spelling of 1143518983 in words is "one billion, one hundred forty-three million, five hundred eighteen thousand, nine hundred eighty-three".