13151226 has 16 divisors (see below), whose sum is σ = 28693728. Its totient is φ = 3985200.

The previous prime is 13151197. The next prime is 13151227. The reversal of 13151226 is 62215131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13151227) 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, 99565 + ... + 99696.

It is an arithmetic number, because the mean of its divisors is an integer number (1793358).

Almost surely, 2^13151226 is an apocalyptic number.

13151226 is an abundant number, since it is smaller than the sum of its proper divisors (15542502).

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

13151226 is a wasteful number, since it uses less digits than its factorization.

13151226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199277.

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

The square root of 13151226 is about 3626.4619121121. The cubic root of 13151226 is about 236.0417071745.

Adding to 13151226 its reverse (62215131), we get a palindrome (75366357).

The spelling of 13151226 in words is "thirteen million, one hundred fifty-one thousand, two hundred twenty-six".