13994137 has 2 divisors, whose sum is σ = 13994138. Its totient is φ = 13994136.

The previous prime is 13994131. The next prime is 13994159. The reversal of 13994137 is 73149931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 1490841 = 3536^2 + 1221^2 .

It is a cyclic number.

It is not a de Polignac number, because 13994137 - 2¹⁹ = 13469849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13994096 and 13994105.

It is not a weakly prime, because it can be changed into another prime (13994131) 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, 6997068 + 6997069.

It is an arithmetic number, because the mean of its divisors is an integer number (6997069).

Almost surely, 2^13994137 is an apocalyptic number.

It is an amenable number.

13994137 is a deficient number, since it is larger than the sum of its proper divisors (1).

13994137 is an equidigital number, since it uses as much as digits as its factorization.

13994137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 37.

The square root of 13994137 is about 3740.8738283989. The cubic root of 13994137 is about 240.9805772815.

The spelling of 13994137 in words is "thirteen million, nine hundred ninety-four thousand, one hundred thirty-seven".