16019973 has 12 divisors (see below), whose sum is σ = 23275980. Its totient is φ = 10617216.

The previous prime is 16019959. The next prime is 16019981. The reversal of 16019973 is 37991061.

It can be written as a sum of positive squares in 2 ways, for example, as 14424804 + 1595169 = 3798^2 + 1263^2 .

It is not a de Polignac number, because 16019973 - 2⁴ = 16019957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16019173) 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 11 ways as a sum of consecutive naturals, for example, 3588 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (1939665).

Almost surely, 2^16019973 is an apocalyptic number.

It is an amenable number.

16019973 is a deficient number, since it is larger than the sum of its proper divisors (7256007).

16019973 is a wasteful number, since it uses less digits than its factorization.

16019973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10468 (or 10465 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16019973 is about 4002.4958463439. The cubic root of 16019973 is about 252.0890180597.

The spelling of 16019973 in words is "sixteen million, nineteen thousand, nine hundred seventy-three".