16132331 has 2 divisors, whose sum is σ = 16132332. Its totient is φ = 16132330.

The previous prime is 16132313. The next prime is 16132351. The reversal of 16132331 is 13323161.

It is a happy number.

Together with previous prime (16132313) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (16132351) can be obtained adding 16132331 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16132331 - 2¹⁰ = 16131307 is a prime.

It is a super-2 number, since 2×16132331² = 520504206987122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16132351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066165 + 8066166.

It is an arithmetic number, because the mean of its divisors is an integer number (8066166).

Almost surely, 2^16132331 is an apocalyptic number.

16132331 is a deficient number, since it is larger than the sum of its proper divisors (1).

16132331 is an equidigital number, since it uses as much as digits as its factorization.

16132331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 20.

The square root of 16132331 is about 4016.5073135748. The cubic root of 16132331 is about 252.6769977497.

Adding to 16132331 its reverse (13323161), we get a palindrome (29455492).

The spelling of 16132331 in words is "sixteen million, one hundred thirty-two thousand, three hundred thirty-one".