1022273909 has 2 divisors, whose sum is σ = 1022273910. Its totient is φ = 1022273908.

The previous prime is 1022273839. The next prime is 1022273933. The reversal of 1022273909 is 9093722201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 932080900 + 90193009 = 30530^2 + 9497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022273909 - 2¹⁶ = 1022208373 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022233909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511136954 + 511136955.

It is an arithmetic number, because the mean of its divisors is an integer number (511136955).

Almost surely, 2^1022273909 is an apocalyptic number.

It is an amenable number.

1022273909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022273909 is an equidigital number, since it uses as much as digits as its factorization.

1022273909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1022273909 is about 31973.0184530645. The cubic root of 1022273909 is about 1007.3701832832.

The spelling of 1022273909 in words is "one billion, twenty-two million, two hundred seventy-three thousand, nine hundred nine".