13994641 has 2 divisors, whose sum is σ = 13994642. Its totient is φ = 13994640.

The previous prime is 13994593. The next prime is 13994699. The reversal of 13994641 is 14649931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13476241 + 518400 = 3671^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 13994641 - 2¹⁷ = 13863569 is a prime.

It is equal to p₉₀₉₇₄₈ and since 13994641 and 909748 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13994641.

It is not a weakly prime, because it can be changed into another prime (13994941) 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, 6997320 + 6997321.

It is an arithmetic number, because the mean of its divisors is an integer number (6997321).

Almost surely, 2^13994641 is an apocalyptic number.

It is an amenable number.

13994641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13994641 is an equidigital number, since it uses as much as digits as its factorization.

13994641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 13994641 is about 3740.9411917324. The cubic root of 13994641 is about 240.9834702252.

The spelling of 13994641 in words is "thirteen million, nine hundred ninety-four thousand, six hundred forty-one".