16931113 has 2 divisors, whose sum is σ = 16931114. Its totient is φ = 16931112.

The previous prime is 16931111. The next prime is 16931137. The reversal of 16931113 is 31113961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13927824 + 3003289 = 3732^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 16931113 - 2¹ = 16931111 is a prime.

Together with 16931111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16931111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465556 + 8465557.

It is an arithmetic number, because the mean of its divisors is an integer number (8465557).

Almost surely, 2^16931113 is an apocalyptic number.

It is an amenable number.

16931113 is a deficient number, since it is larger than the sum of its proper divisors (1).

16931113 is an equidigital number, since it uses as much as digits as its factorization.

16931113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 25.

The square root of 16931113 is about 4114.7433698835. The cubic root of 16931113 is about 256.7803793283.

The spelling of 16931113 in words is "sixteen million, nine hundred thirty-one thousand, one hundred thirteen".