13215126 has 32 divisors (see below), whose sum is σ = 27876960. Its totient is φ = 4169984.

The previous prime is 13215121. The next prime is 13215151. The reversal of 13215126 is 62151231.

13215126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8506 + ... + 9938.

It is an arithmetic number, because the mean of its divisors is an integer number (871155).

Almost surely, 2^13215126 is an apocalyptic number.

13215126 is an abundant number, since it is smaller than the sum of its proper divisors (14661834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13215126 is a wasteful number, since it uses less digits than its factorization.

13215126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its digits is 360, while the sum is 21.

The square root of 13215126 is about 3635.2614761527. The cubic root of 13215126 is about 236.4233877360.

Adding to 13215126 its reverse (62151231), we get a palindrome (75366357).

The spelling of 13215126 in words is "thirteen million, two hundred fifteen thousand, one hundred twenty-six".