1143654371 has 2 divisors, whose sum is σ = 1143654372. Its totient is φ = 1143654370.

The previous prime is 1143654341. The next prime is 1143654373. The reversal of 1143654371 is 1734563411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1143654371 - 2¹⁰ = 1143653347 is a prime.

Together with 1143654373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1143654373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571827185 + 571827186.

It is an arithmetic number, because the mean of its divisors is an integer number (571827186).

Almost surely, 2^1143654371 is an apocalyptic number.

1143654371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143654371 is an equidigital number, since it uses as much as digits as its factorization.

1143654371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 1143654371 is about 33817.9592967997. The cubic root of 1143654371 is about 1045.7589691005.

The spelling of 1143654371 in words is "one billion, one hundred forty-three million, six hundred fifty-four thousand, three hundred seventy-one".