1022542439 has 2 divisors, whose sum is σ = 1022542440. Its totient is φ = 1022542438.

The previous prime is 1022542369. The next prime is 1022542489. The reversal of 1022542439 is 9342452201.

It is a strong prime.

It is an emirp because it is prime and its reverse (9342452201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022542439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022542489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511271219 + 511271220.

It is an arithmetic number, because the mean of its divisors is an integer number (511271220).

Almost surely, 2^1022542439 is an apocalyptic number.

1022542439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022542439 is an equidigital number, since it uses as much as digits as its factorization.

1022542439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1022542439 is about 31977.2174993385. The cubic root of 1022542439 is about 1007.4583805954.

The spelling of 1022542439 in words is "one billion, twenty-two million, five hundred forty-two thousand, four hundred thirty-nine".