13261018 has 8 divisors (see below), whose sum is σ = 20756448. Its totient is φ = 6342204.

The previous prime is 13261009. The next prime is 13261021. The reversal of 13261018 is 81016231.

13261018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13261018.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144096 + ... + 144187.

It is an arithmetic number, because the mean of its divisors is an integer number (2594556).

Almost surely, 2^13261018 is an apocalyptic number.

13261018 is the 1947-th centered heptagonal number.

13261018 is a deficient number, since it is larger than the sum of its proper divisors (7495430).

13261018 is a wasteful number, since it uses less digits than its factorization.

13261018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288308.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 13261018 is about 3641.5680688407. The cubic root of 13261018 is about 236.6967463807.

Adding to 13261018 its reverse (81016231), we get a palindrome (94277249).

The spelling of 13261018 in words is "thirteen million, two hundred sixty-one thousand, eighteen".