14158621 has 2 divisors, whose sum is σ = 14158622. Its totient is φ = 14158620.

The previous prime is 14158619. The next prime is 14158633. The reversal of 14158621 is 12685141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12744900 + 1413721 = 3570^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 14158621 - 2¹ = 14158619 is a prime.

Together with 14158619, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14158621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14158691) 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, 7079310 + 7079311.

It is an arithmetic number, because the mean of its divisors is an integer number (7079311).

Almost surely, 2^14158621 is an apocalyptic number.

It is an amenable number.

14158621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14158621 is an equidigital number, since it uses as much as digits as its factorization.

14158621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 28.

The square root of 14158621 is about 3762.7943074263. The cubic root of 14158621 is about 241.9210463472.

The spelling of 14158621 in words is "fourteen million, one hundred fifty-eight thousand, six hundred twenty-one".