16328231 has 2 divisors, whose sum is σ = 16328232. Its totient is φ = 16328230.

The previous prime is 16328219. The next prime is 16328243. The reversal of 16328231 is 13282361.

It is a balanced prime because it is at equal distance from previous prime (16328219) and next prime (16328243).

It is an emirp because it is prime and its reverse (13282361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16328231 - 2⁶ = 16328167 is a prime.

It is a super-2 number, since 2×16328231² = 533222255178722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16328231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16328531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8164115 + 8164116.

It is an arithmetic number, because the mean of its divisors is an integer number (8164116).

Almost surely, 2^16328231 is an apocalyptic number.

16328231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16328231 is an equidigital number, since it uses as much as digits as its factorization.

16328231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 16328231 is about 4040.8205849802. The cubic root of 16328231 is about 253.6956643914.

The spelling of 16328231 in words is "sixteen million, three hundred twenty-eight thousand, two hundred thirty-one".