1142959289 has 2 divisors, whose sum is σ = 1142959290. Its totient is φ = 1142959288.

The previous prime is 1142959261. The next prime is 1142959291. The reversal of 1142959289 is 9829592411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1127616400 + 15342889 = 33580^2 + 3917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142959289 - 2¹⁶ = 1142893753 is a prime.

It is a super-2 number, since 2×1142959289² = 2612711872622771042, which contains 22 as substring.

Together with 1142959291, 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 (1142959889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571479644 + 571479645.

It is an arithmetic number, because the mean of its divisors is an integer number (571479645).

Almost surely, 2^1142959289 is an apocalyptic number.

It is an amenable number.

1142959289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142959289 is an equidigital number, since it uses as much as digits as its factorization.

1142959289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 50.

The square root of 1142959289 is about 33807.6809172117. The cubic root of 1142959289 is about 1045.5470648851.

The spelling of 1142959289 in words is "one billion, one hundred forty-two million, nine hundred fifty-nine thousand, two hundred eighty-nine".