14151661 has 2 divisors, whose sum is σ = 14151662. Its totient is φ = 14151660.

The previous prime is 14151629. The next prime is 14151677. The reversal of 14151661 is 16615141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10929636 + 3222025 = 3306^2 + 1795^2 .

It is an emirp because it is prime and its reverse (16615141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14151661 - 2⁵ = 14151629 is a prime.

It is equal to p₉₁₉₃₀₃ and since 14151661 and 919303 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14151611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7075830 + 7075831.

It is an arithmetic number, because the mean of its divisors is an integer number (7075831).

Almost surely, 2^14151661 is an apocalyptic number.

It is an amenable number.

14151661 is a deficient number, since it is larger than the sum of its proper divisors (1).

14151661 is an equidigital number, since it uses as much as digits as its factorization.

14151661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 14151661 is about 3761.8693491401. The cubic root of 14151661 is about 241.8813992080.

The spelling of 14151661 in words is "fourteen million, one hundred fifty-one thousand, six hundred sixty-one".