2042202509 has 2 divisors, whose sum is σ = 2042202510. Its totient is φ = 2042202508.

The previous prime is 2042202473. The next prime is 2042202523. The reversal of 2042202509 is 9052022402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1120776484 + 921426025 = 33478^2 + 30355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042202509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042202529) 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, 1021101254 + 1021101255.

It is an arithmetic number, because the mean of its divisors is an integer number (1021101255).

Almost surely, 2^2042202509 is an apocalyptic number.

It is an amenable number.

2042202509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042202509 is an equidigital number, since it uses as much as digits as its factorization.

2042202509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2042202509 is about 45190.7347694193. The cubic root of 2042202509 is about 1268.7214091643.

The spelling of 2042202509 in words is "two billion, forty-two million, two hundred two thousand, five hundred nine".