1022745539 has 2 divisors, whose sum is σ = 1022745540. Its totient is φ = 1022745538.

The previous prime is 1022745511. The next prime is 1022745541. The reversal of 1022745539 is 9355472201.

It is a strong prime.

It is an emirp because it is prime and its reverse (9355472201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022745539 - 2²⁴ = 1005968323 is a prime.

It is a Sophie Germain prime.

Together with 1022745541, 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 (1022745839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511372769 + 511372770.

It is an arithmetic number, because the mean of its divisors is an integer number (511372770).

Almost surely, 2^1022745539 is an apocalyptic number.

1022745539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022745539 is an equidigital number, since it uses as much as digits as its factorization.

1022745539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1022745539 is about 31980.3930401113. The cubic root of 1022745539 is about 1007.5250775016.

The spelling of 1022745539 in words is "one billion, twenty-two million, seven hundred forty-five thousand, five hundred thirty-nine".