1041242309 has 2 divisors, whose sum is σ = 1041242310. Its totient is φ = 1041242308.

The previous prime is 1041242297. The next prime is 1041242311. The reversal of 1041242309 is 9032421401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 910711684 + 130530625 = 30178^2 + 11425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1041242309 is a prime.

Together with 1041242311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041242509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520621154 + 520621155.

It is an arithmetic number, because the mean of its divisors is an integer number (520621155).

Almost surely, 2^1041242309 is an apocalyptic number.

It is an amenable number.

1041242309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041242309 is an equidigital number, since it uses as much as digits as its factorization.

1041242309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1041242309 is about 32268.2864280085. The cubic root of 1041242309 is about 1013.5626590161.

The spelling of 1041242309 in words is "one billion, forty-one million, two hundred forty-two thousand, three hundred nine".