16232131 has 2 divisors, whose sum is σ = 16232132. Its totient is φ = 16232130.

The previous prime is 16232129. The next prime is 16232149. The reversal of 16232131 is 13123261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16232131 - 2¹ = 16232129 is a prime.

It is a super-2 number, since 2×16232131² = 526964153602322, which contains 22 as substring.

Together with 16232129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16232099 and 16232108.

It is not a weakly prime, because it can be changed into another prime (16232101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8116065 + 8116066.

It is an arithmetic number, because the mean of its divisors is an integer number (8116066).

Almost surely, 2^16232131 is an apocalyptic number.

16232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

16232131 is an equidigital number, since it uses as much as digits as its factorization.

16232131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 19.

The square root of 16232131 is about 4028.9118878427. The cubic root of 16232131 is about 253.1969751325.

Adding to 16232131 its reverse (13123261), we get a palindrome (29355392).

The spelling of 16232131 in words is "sixteen million, two hundred thirty-two thousand, one hundred thirty-one".