1423801517 has 2 divisors, whose sum is σ = 1423801518. Its totient is φ = 1423801516.

The previous prime is 1423801507. The next prime is 1423801529. The reversal of 1423801517 is 7151083241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1390842436 + 32959081 = 37294^2 + 5741^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423801517 - 2¹⁴ = 1423785133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423801507) 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, 711900758 + 711900759.

It is an arithmetic number, because the mean of its divisors is an integer number (711900759).

Almost surely, 2^1423801517 is an apocalyptic number.

It is an amenable number.

1423801517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423801517 is an equidigital number, since it uses as much as digits as its factorization.

1423801517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1423801517 is about 37733.2945420884. The cubic root of 1423801517 is about 1124.9929920880.

Adding to 1423801517 its reverse (7151083241), we get a palindrome (8574884758).

The spelling of 1423801517 in words is "one billion, four hundred twenty-three million, eight hundred one thousand, five hundred seventeen".