13530111 has 8 divisors (see below), whose sum is σ = 20617344. Its totient is φ = 7731480.

The previous prime is 13530107. The next prime is 13530119. The reversal of 13530111 is 11103531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13530111 - 2² = 13530107 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13530119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322125 + ... + 322166.

It is an arithmetic number, because the mean of its divisors is an integer number (2577168).

Almost surely, 2^13530111 is an apocalyptic number.

13530111 is a deficient number, since it is larger than the sum of its proper divisors (7087233).

13530111 is an equidigital number, since it uses as much as digits as its factorization.

13530111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644301.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 13530111 is about 3678.3299199501. The cubic root of 13530111 is about 238.2870568321.

Adding to 13530111 its reverse (11103531), we get a palindrome (24633642).

The spelling of 13530111 in words is "thirteen million, five hundred thirty thousand, one hundred eleven".