14521414021 has 4 divisors (see below), whose sum is σ = 15152779872. Its totient is φ = 13890048172.

The previous prime is 14521413961. The next prime is 14521414027. The reversal of 14521414021 is 12041412541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12041412541 = 65269 ⋅184489.

It is a cyclic number.

It is not a de Polignac number, because 14521414021 - 2²³ = 14513025413 is a prime.

It is a super-3 number, since 3×14521414021³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14521414027) 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, 315682891 + ... + 315682936.

It is an arithmetic number, because the mean of its divisors is an integer number (3788194968).

Almost surely, 2^14521414021 is an apocalyptic number.

It is an amenable number.

14521414021 is a deficient number, since it is larger than the sum of its proper divisors (631365851).

14521414021 is an equidigital number, since it uses as much as digits as its factorization.

14521414021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631365850.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 14521414021 its reverse (12041412541), we get a palindrome (26562826562).

The spelling of 14521414021 in words is "fourteen billion, five hundred twenty-one million, four hundred fourteen thousand, twenty-one".