13530453215 has 4 divisors (see below), whose sum is σ = 16236543864. Its totient is φ = 10824362568.

The previous prime is 13530453191. The next prime is 13530453227. The reversal of 13530453215 is 51235403531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13530453215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353045317 + ... + 1353045326.

It is an arithmetic number, because the mean of its divisors is an integer number (4059135966).

Almost surely, 2^13530453215 is an apocalyptic number.

13530453215 is a deficient number, since it is larger than the sum of its proper divisors (2706090649).

13530453215 is an equidigital number, since it uses as much as digits as its factorization.

13530453215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706090648.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 13530453215 its reverse (51235403531), we get a palindrome (64765856746).

The spelling of 13530453215 in words is "thirteen billion, five hundred thirty million, four hundred fifty-three thousand, two hundred fifteen".