16631043 has 16 divisors (see below), whose sum is σ = 26052096. Its totient is φ = 9303840.

The previous prime is 16631039. The next prime is 16631051. The reversal of 16631043 is 34013661.

It is not a de Polignac number, because 16631043 - 2² = 16631039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16631033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18955 + ... + 19812.

It is an arithmetic number, because the mean of its divisors is an integer number (1628256).

Almost surely, 2^16631043 is an apocalyptic number.

16631043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16631043 is a deficient number, since it is larger than the sum of its proper divisors (9421053).

16631043 is a wasteful number, since it uses less digits than its factorization.

16631043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38794.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 16631043 is about 4078.1175804530. The cubic root of 16631043 is about 255.2543559676.

The spelling of 16631043 in words is "sixteen million, six hundred thirty-one thousand, forty-three".