13831043 has 2 divisors, whose sum is σ = 13831044. Its totient is φ = 13831042.

The previous prime is 13831009. The next prime is 13831049. The reversal of 13831043 is 34013831.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34013831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13831043 - 2⁸ = 13830787 is a prime.

It is not a weakly prime, because it can be changed into another prime (13831049) 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 as a sum of consecutive naturals, namely, 6915521 + 6915522.

It is an arithmetic number, because the mean of its divisors is an integer number (6915522).

Almost surely, 2^13831043 is an apocalyptic number.

13831043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13831043 is an equidigital number, since it uses as much as digits as its factorization.

13831043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13831043 is about 3719.0110244526. The cubic root of 13831043 is about 240.0407511820.

Adding to 13831043 its reverse (34013831), we get a palindrome (47844874).

The spelling of 13831043 in words is "thirteen million, eight hundred thirty-one thousand, forty-three".