16682231 has 4 divisors (see below), whose sum is σ = 16917264. Its totient is φ = 16447200.

The previous prime is 16682201. The next prime is 16682233. The reversal of 16682231 is 13228661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13228661 = 31 ⋅426731.

It is a cyclic number.

It is not a de Polignac number, because 16682231 - 2⁶ = 16682167 is a prime.

It is a super-2 number, since 2×16682231² = 556593662274722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16682194 and 16682203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16682233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117410 + ... + 117551.

It is an arithmetic number, because the mean of its divisors is an integer number (4229316).

Almost surely, 2^16682231 is an apocalyptic number.

16682231 is a deficient number, since it is larger than the sum of its proper divisors (235033).

16682231 is an equidigital number, since it uses as much as digits as its factorization.

16682231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235032.

The product of its digits is 3456, while the sum is 29.

The square root of 16682231 is about 4084.3886935501. The cubic root of 16682231 is about 255.5159666953.

The spelling of 16682231 in words is "sixteen million, six hundred eighty-two thousand, two hundred thirty-one".