13641521053 has 4 divisors (see below), whose sum is σ = 14234630688. Its totient is φ = 13048411420.

The previous prime is 13641521027. The next prime is 13641521059. The reversal of 13641521053 is 35012514631.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13641521053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13641521059) 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, 296554783 + ... + 296554828.

It is an arithmetic number, because the mean of its divisors is an integer number (3558657672).

Almost surely, 2^13641521053 is an apocalyptic number.

It is an amenable number.

13641521053 is a deficient number, since it is larger than the sum of its proper divisors (593109635).

13641521053 is an equidigital number, since it uses as much as digits as its factorization.

13641521053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593109634.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13641521053 in words is "thirteen billion, six hundred forty-one million, five hundred twenty-one thousand, fifty-three".