1040022509 has 2 divisors, whose sum is σ = 1040022510. Its totient is φ = 1040022508.

The previous prime is 1040022469. The next prime is 1040022517. The reversal of 1040022509 is 9052200401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 883397284 + 156625225 = 29722^2 + 12515^2 .

It is an emirp because it is prime and its reverse (9052200401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040022509 - 2²⁸ = 771587053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040022539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520011254 + 520011255.

It is an arithmetic number, because the mean of its divisors is an integer number (520011255).

Almost surely, 2^1040022509 is an apocalyptic number.

It is an amenable number.

1040022509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040022509 is an equidigital number, since it uses as much as digits as its factorization.

1040022509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1040022509 is about 32249.3799785360. The cubic root of 1040022509 is about 1013.1667131280.

The spelling of 1040022509 in words is "one billion, forty million, twenty-two thousand, five hundred nine".