16049801 has 2 divisors, whose sum is σ = 16049802. Its totient is φ = 16049800.

The previous prime is 16049797. The next prime is 16049807. The reversal of 16049801 is 10894061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 3904576 = 3485^2 + 1976^2 .

It is an emirp because it is prime and its reverse (10894061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16049801 - 2² = 16049797 is a prime.

It is a super-2 number, since 2×16049801² = 515192224279202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16049807) 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, 8024900 + 8024901.

It is an arithmetic number, because the mean of its divisors is an integer number (8024901).

Almost surely, 2^16049801 is an apocalyptic number.

It is an amenable number.

16049801 is a deficient number, since it is larger than the sum of its proper divisors (1).

16049801 is an equidigital number, since it uses as much as digits as its factorization.

16049801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 16049801 is about 4006.2202885014. The cubic root of 16049801 is about 252.2453780663.

The spelling of 16049801 in words is "sixteen million, forty-nine thousand, eight hundred one".