16812137 has 8 divisors (see below), whose sum is σ = 17536512. Its totient is φ = 16099200.

The previous prime is 16812127. The next prime is 16812139. The reversal of 16812137 is 73121861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16812137 - 2⁶ = 16812073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16812139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212 + ... + 5802.

It is an arithmetic number, because the mean of its divisors is an integer number (2192064).

Almost surely, 2^16812137 is an apocalyptic number.

It is an amenable number.

16812137 is a deficient number, since it is larger than the sum of its proper divisors (724375).

16812137 is an equidigital number, since it uses as much as digits as its factorization.

16812137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719.

The product of its digits is 2016, while the sum is 29.

The square root of 16812137 is about 4100.2606014740. The cubic root of 16812137 is about 256.1774942991.

Adding to 16812137 its reverse (73121861), we get a palindrome (89933998).

The spelling of 16812137 in words is "sixteen million, eight hundred twelve thousand, one hundred thirty-seven".