13894081 has 2 divisors, whose sum is σ = 13894082. Its totient is φ = 13894080.

The previous prime is 13894051. The next prime is 13894099. The reversal of 13894081 is 18049831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 4840000 = 3009^2 + 2200^2 .

It is an emirp because it is prime and its reverse (18049831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13894081 - 2⁷ = 13893953 is a prime.

It is a super-2 number, since 2×13894081² = 386090973669122, which contains 22 as substring.

It is equal to p₉₀₃₆₇₉ and since 13894081 and 903679 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13894021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947040 + 6947041.

It is an arithmetic number, because the mean of its divisors is an integer number (6947041).

Almost surely, 2^13894081 is an apocalyptic number.

It is an amenable number.

13894081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13894081 is an equidigital number, since it uses as much as digits as its factorization.

13894081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13894081 is about 3727.4764922129. The cubic root of 13894081 is about 240.4048779329.

The spelling of 13894081 in words is "thirteen million, eight hundred ninety-four thousand, eighty-one".