16232401 has 2 divisors, whose sum is σ = 16232402. Its totient is φ = 16232400.

The previous prime is 16232369. The next prime is 16232407. The reversal of 16232401 is 10423261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11566801 + 4665600 = 3401^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 16232401 - 2⁵ = 16232369 is a prime.

It is not a weakly prime, because it can be changed into another prime (16232407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8116200 + 8116201.

It is an arithmetic number, because the mean of its divisors is an integer number (8116201).

Almost surely, 2^16232401 is an apocalyptic number.

It is an amenable number.

16232401 is a deficient number, since it is larger than the sum of its proper divisors (1).

16232401 is an equidigital number, since it uses as much as digits as its factorization.

16232401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16232401 is about 4028.9453955098. The cubic root of 16232401 is about 253.1983789901.

Adding to 16232401 its reverse (10423261), we get a palindrome (26655662).

The spelling of 16232401 in words is "sixteen million, two hundred thirty-two thousand, four hundred one".