14645621 has 2 divisors, whose sum is σ = 14645622. Its totient is φ = 14645620.

The previous prime is 14645539. The next prime is 14645627. The reversal of 14645621 is 12654641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7623121 + 7022500 = 2761^2 + 2650^2 .

It is an emirp because it is prime and its reverse (12654641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14645621 - 2¹⁸ = 14383477 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14645627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7322810 + 7322811.

It is an arithmetic number, because the mean of its divisors is an integer number (7322811).

Almost surely, 2^14645621 is an apocalyptic number.

It is an amenable number.

14645621 is a deficient number, since it is larger than the sum of its proper divisors (1).

14645621 is an equidigital number, since it uses as much as digits as its factorization.

14645621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 14645621 is about 3826.9597593913. The cubic root of 14645621 is about 244.6635448261.

It can be divided in two parts, 146 and 45621, that multiplied together give a palindrome (6660666).

The spelling of 14645621 in words is "fourteen million, six hundred forty-five thousand, six hundred twenty-one".