2042267509 has 2 divisors, whose sum is σ = 2042267510. Its totient is φ = 2042267508.

The previous prime is 2042267483. The next prime is 2042267533. The reversal of 2042267509 is 9057622402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139265009 + 903002500 = 33753^2 + 30050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042267509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042264509) 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, 1021133754 + 1021133755.

It is an arithmetic number, because the mean of its divisors is an integer number (1021133755).

Almost surely, 2^2042267509 is an apocalyptic number.

It is an amenable number.

2042267509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042267509 is an equidigital number, since it uses as much as digits as its factorization.

2042267509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 2042267509 is about 45191.4539376639. The cubic root of 2042267509 is about 1268.7348694710.

The spelling of 2042267509 in words is "two billion, forty-two million, two hundred sixty-seven thousand, five hundred nine".