16287137 has 4 divisors (see below), whose sum is σ = 16299540. Its totient is φ = 16274736.

The previous prime is 16287119. The next prime is 16287149. The reversal of 16287137 is 73178261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73178261 = 13 ⋅5629097.

It can be written as a sum of positive squares in 2 ways, for example, as 9296401 + 6990736 = 3049^2 + 2644^2 .

It is a cyclic number.

It is not a de Polignac number, because 16287137 - 2¹⁰ = 16286113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16287097 and 16287106.

It is not an unprimeable number, because it can be changed into a prime (16287157) 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 3 ways as a sum of consecutive naturals, for example, 3962 + ... + 6947.

It is an arithmetic number, because the mean of its divisors is an integer number (4074885).

Almost surely, 2^16287137 is an apocalyptic number.

It is an amenable number.

16287137 is a deficient number, since it is larger than the sum of its proper divisors (12403).

16287137 is a wasteful number, since it uses less digits than its factorization.

16287137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402.

The product of its digits is 14112, while the sum is 35.

The square root of 16287137 is about 4035.7325233469. The cubic root of 16287137 is about 253.4826564650.

The spelling of 16287137 in words is "sixteen million, two hundred eighty-seven thousand, one hundred thirty-seven".