1423348709 has 2 divisors, whose sum is σ = 1423348710. Its totient is φ = 1423348708.

The previous prime is 1423348699. The next prime is 1423348723. The reversal of 1423348709 is 9078433241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1321540609 + 101808100 = 36353^2 + 10090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423348709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423348909) 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, 711674354 + 711674355.

It is an arithmetic number, because the mean of its divisors is an integer number (711674355).

Almost surely, 2^1423348709 is an apocalyptic number.

It is an amenable number.

1423348709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423348709 is an equidigital number, since it uses as much as digits as its factorization.

1423348709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1423348709 is about 37727.2939527870. The cubic root of 1423348709 is about 1124.8737198833.

The spelling of 1423348709 in words is "one billion, four hundred twenty-three million, three hundred forty-eight thousand, seven hundred nine".