13113506 has 8 divisors (see below), whose sum is σ = 22480320. Its totient is φ = 5620068.

The previous prime is 13113491. The next prime is 13113509. The reversal of 13113506 is 60531131.

It is a happy number.

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

It is a super-2 number, since 2×13113506² = 343928079224072, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13113509) 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, 468326 + ... + 468353.

It is an arithmetic number, because the mean of its divisors is an integer number (2810040).

Almost surely, 2^13113506 is an apocalyptic number.

13113506 is a deficient number, since it is larger than the sum of its proper divisors (9366814).

13113506 is an equidigital number, since it uses as much as digits as its factorization.

13113506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936688.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13113506 is about 3621.2575163885. The cubic root of 13113506 is about 235.8158215412.

Adding to 13113506 its reverse (60531131), we get a palindrome (73644637).

The spelling of 13113506 in words is "thirteen million, one hundred thirteen thousand, five hundred six".