16138801 has 16 divisors (see below), whose sum is σ = 19584000. Its totient is φ = 12999888.

The previous prime is 16138799. The next prime is 16138823. The reversal of 16138801 is 10883161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16138801 - 2¹ = 16138799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16138801.

It is not an unprimeable number, because it can be changed into a prime (16138841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8650 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^16138801 is an apocalyptic number.

It is an amenable number.

16138801 is a deficient number, since it is larger than the sum of its proper divisors (3445199).

16138801 is a wasteful number, since it uses less digits than its factorization.

16138801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 16138801 is about 4017.3126589799. The cubic root of 16138801 is about 252.7107726099.

The spelling of 16138801 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred one".