13530638115 has 40 divisors (see below), whose sum is σ = 24298412688. Its totient is φ = 7203401280.

The previous prime is 13530638101. The next prime is 13530638137. The reversal of 13530638115 is 51183603531.

13530638115 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 0 + 638 + 1 + 15 = 666.

It is not a de Polignac number, because 13530638115 - 2¹⁰ = 13530637091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13530638115.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 198345 + ... + 257685.

Almost surely, 2^13530638115 is an apocalyptic number.

13530638115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13530638115 is a deficient number, since it is larger than the sum of its proper divisors (10767774573).

13530638115 is an equidigital number, since it uses as much as digits as its factorization.

13530638115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59921 (or 59912 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 13530638115 in words is "thirteen billion, five hundred thirty million, six hundred thirty-eight thousand, one hundred fifteen".