16140001 has 2 divisors, whose sum is σ = 16140002. Its totient is φ = 16140000.

The previous prime is 16139993. The next prime is 16140017. The reversal of 16140001 is 10004161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 7845601 = 2880^2 + 2801^2 .

It is a cyclic number.

It is not a de Polignac number, because 16140001 - 2³ = 16139993 is a prime.

It is not a weakly prime, because it can be changed into another prime (16140031) 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, 8070000 + 8070001.

It is an arithmetic number, because the mean of its divisors is an integer number (8070001).

Almost surely, 2^16140001 is an apocalyptic number.

It is an amenable number.

16140001 is a deficient number, since it is larger than the sum of its proper divisors (1).

16140001 is an equidigital number, since it uses as much as digits as its factorization.

16140001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 16140001 is about 4017.4620097768. The cubic root of 16140001 is about 252.7170358883.

Adding to 16140001 its reverse (10004161), we get a palindrome (26144162).

The spelling of 16140001 in words is "sixteen million, one hundred forty thousand, one".