14161621 has 4 divisors (see below), whose sum is σ = 14240044. Its totient is φ = 14083200.

The previous prime is 14161601. The next prime is 14161627. The reversal of 14161621 is 12616141.

14161621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6812100 + 7349521 = 2610^2 + 2711^2 .

It is a cyclic number.

It is not a de Polignac number, because 14161621 - 2¹¹ = 14159573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14161592 and 14161601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14161627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38940 + ... + 39301.

It is an arithmetic number, because the mean of its divisors is an integer number (3560011).

Almost surely, 2^14161621 is an apocalyptic number.

It is an amenable number.

14161621 is a deficient number, since it is larger than the sum of its proper divisors (78423).

14161621 is an equidigital number, since it uses as much as digits as its factorization.

14161621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78422.

The product of its digits is 288, while the sum is 22.

The square root of 14161621 is about 3763.1929262263. The cubic root of 14161621 is about 241.9381316243.

Adding to 14161621 its reverse (12616141), we get a palindrome (26777762).

The spelling of 14161621 in words is "fourteen million, one hundred sixty-one thousand, six hundred twenty-one".