16532231 has 2 divisors, whose sum is σ = 16532232. Its totient is φ = 16532230.

The previous prime is 16532179. The next prime is 16532273. The reversal of 16532231 is 13223561.

16532231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16532231 - 2¹⁸ = 16270087 is a prime.

It is a super-2 number, since 2×16532231² = 546629323674722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16532197 and 16532206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16532531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8266115 + 8266116.

It is an arithmetic number, because the mean of its divisors is an integer number (8266116).

Almost surely, 2^16532231 is an apocalyptic number.

16532231 is a deficient number, since it is larger than the sum of its proper divisors (1).

16532231 is an equidigital number, since it uses as much as digits as its factorization.

16532231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 16532231 is about 4065.9846285986. The cubic root of 16532231 is about 254.7478270859.

Adding to 16532231 its reverse (13223561), we get a palindrome (29755792).

The spelling of 16532231 in words is "sixteen million, five hundred thirty-two thousand, two hundred thirty-one".