1142264191 has 2 divisors, whose sum is σ = 1142264192. Its totient is φ = 1142264190.

The previous prime is 1142264089. The next prime is 1142264219. The reversal of 1142264191 is 1914622411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142264191 - 2¹⁷ = 1142133119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142264491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571132095 + 571132096.

It is an arithmetic number, because the mean of its divisors is an integer number (571132096).

Almost surely, 2^1142264191 is an apocalyptic number.

1142264191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142264191 is an equidigital number, since it uses as much as digits as its factorization.

1142264191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 1142264191 is about 33797.3991750845. The cubic root of 1142264191 is about 1045.3350698596.

The spelling of 1142264191 in words is "one billion, one hundred forty-two million, two hundred sixty-four thousand, one hundred ninety-one".