16731023 has 2 divisors, whose sum is σ = 16731024. Its totient is φ = 16731022.

The previous prime is 16731007. The next prime is 16731047. The reversal of 16731023 is 32013761.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16731023 - 2⁴ = 16731007 is a prime.

It is a Sophie Germain prime.

It is equal to p_1075073 and since 16731023 and 1075073 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16731023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16731083) 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, 8365511 + 8365512.

It is an arithmetic number, because the mean of its divisors is an integer number (8365512).

Almost surely, 2^16731023 is an apocalyptic number.

16731023 is a deficient number, since it is larger than the sum of its proper divisors (1).

16731023 is an equidigital number, since it uses as much as digits as its factorization.

16731023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 16731023 is about 4090.3573193549. The cubic root of 16731023 is about 255.7648342914.

Adding to 16731023 its reverse (32013761), we get a palindrome (48744784).

The spelling of 16731023 in words is "sixteen million, seven hundred thirty-one thousand, twenty-three".