1143401167 has 2 divisors, whose sum is σ = 1143401168. Its totient is φ = 1143401166.

The previous prime is 1143401131. The next prime is 1143401173. The reversal of 1143401167 is 7611043411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143401167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143431167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571700583 + 571700584.

It is an arithmetic number, because the mean of its divisors is an integer number (571700584).

Almost surely, 2^1143401167 is an apocalyptic number.

1143401167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143401167 is an equidigital number, since it uses as much as digits as its factorization.

1143401167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1143401167 is about 33814.2154574079. The cubic root of 1143401167 is about 1045.6817867208.

Adding to 1143401167 its reverse (7611043411), we get a palindrome (8754444578).

The spelling of 1143401167 in words is "one billion, one hundred forty-three million, four hundred one thousand, one hundred sixty-seven".