1143554117 has 2 divisors, whose sum is σ = 1143554118. Its totient is φ = 1143554116.

The previous prime is 1143554099. The next prime is 1143554119. The reversal of 1143554117 is 7114553411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 876100801 + 267453316 = 29599^2 + 16354^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143554117 - 2⁶ = 1143554053 is a prime.

Together with 1143554119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143554119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571777058 + 571777059.

It is an arithmetic number, because the mean of its divisors is an integer number (571777059).

Almost surely, 2^1143554117 is an apocalyptic number.

It is an amenable number.

1143554117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143554117 is an equidigital number, since it uses as much as digits as its factorization.

1143554117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 1143554117 is about 33816.4770045610. The cubic root of 1143554117 is about 1045.7284107471.

The spelling of 1143554117 in words is "one billion, one hundred forty-three million, five hundred fifty-four thousand, one hundred seventeen".