13281022 has 4 divisors (see below), whose sum is σ = 19921536. Its totient is φ = 6640510.

The previous prime is 13281017. The next prime is 13281031. The reversal of 13281022 is 22018231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22018231 = 47 ⋅468473.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320254 + ... + 3320257.

It is an arithmetic number, because the mean of its divisors is an integer number (4980384).

Almost surely, 2^13281022 is an apocalyptic number.

13281022 is a deficient number, since it is larger than the sum of its proper divisors (6640514).

13281022 is an equidigital number, since it uses as much as digits as its factorization.

13281022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6640513.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13281022 is about 3644.3136528021. The cubic root of 13281022 is about 236.8157041379.

Adding to 13281022 its reverse (22018231), we get a palindrome (35299253).

The spelling of 13281022 in words is "thirteen million, two hundred eighty-one thousand, twenty-two".