16745231 has 2 divisors, whose sum is σ = 16745232. Its totient is φ = 16745230.

The previous prime is 16745159. The next prime is 16745233. The reversal of 16745231 is 13254761.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16745231 - 2¹⁸ = 16483087 is a prime.

It is a super-2 number, since 2×16745231² = 560805522486722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 16745233, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16745194 and 16745203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16745233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8372615 + 8372616.

It is an arithmetic number, because the mean of its divisors is an integer number (8372616).

Almost surely, 2^16745231 is an apocalyptic number.

16745231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16745231 is an equidigital number, since it uses as much as digits as its factorization.

16745231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 16745231 is about 4092.0937183794. The cubic root of 16745231 is about 255.8372123843.

Adding to 16745231 its reverse (13254761), we get a palindrome (29999992).

The spelling of 16745231 in words is "sixteen million, seven hundred forty-five thousand, two hundred thirty-one".