1142122291 has 2 divisors, whose sum is σ = 1142122292. Its totient is φ = 1142122290.

The previous prime is 1142122229. The next prime is 1142122343. The reversal of 1142122291 is 1922212411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142122291 - 2²⁹ = 605251379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142128291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571061145 + 571061146.

It is an arithmetic number, because the mean of its divisors is an integer number (571061146).

Almost surely, 2^1142122291 is an apocalyptic number.

1142122291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142122291 is an equidigital number, since it uses as much as digits as its factorization.

1142122291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 1142122291 is about 33795.2998359239. The cubic root of 1142122291 is about 1045.2917818035.

The spelling of 1142122291 in words is "one billion, one hundred forty-two million, one hundred twenty-two thousand, two hundred ninety-one".