14553136421 has 2 divisors, whose sum is σ = 14553136422. Its totient is φ = 14553136420.

The previous prime is 14553136379. The next prime is 14553136453. The reversal of 14553136421 is 12463135541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11805909025 + 2747227396 = 108655^2 + 52414^2 .

It is an emirp because it is prime and its reverse (12463135541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14553136421 - 2¹⁰ = 14553135397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14553136021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7276568210 + 7276568211.

It is an arithmetic number, because the mean of its divisors is an integer number (7276568211).

Almost surely, 2^14553136421 is an apocalyptic number.

It is an amenable number.

14553136421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14553136421 is an equidigital number, since it uses as much as digits as its factorization.

14553136421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 35.

The spelling of 14553136421 in words is "fourteen billion, five hundred fifty-three million, one hundred thirty-six thousand, four hundred twenty-one".