1142224639 has 2 divisors, whose sum is σ = 1142224640. Its totient is φ = 1142224638.

The previous prime is 1142224583. The next prime is 1142224651. The reversal of 1142224639 is 9364222411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1142224639 - 2⁷ = 1142224511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142224439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571112319 + 571112320.

It is an arithmetic number, because the mean of its divisors is an integer number (571112320).

Almost surely, 2^1142224639 is an apocalyptic number.

1142224639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142224639 is an equidigital number, since it uses as much as digits as its factorization.

1142224639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 1142224639 is about 33796.8140362372. The cubic root of 1142224639 is about 1045.3230044751.

The spelling of 1142224639 in words is "one billion, one hundred forty-two million, two hundred twenty-four thousand, six hundred thirty-nine".