13531222 has 8 divisors (see below), whose sum is σ = 21179376. Its totient is φ = 6471432.

The previous prime is 13531183. The next prime is 13531229. The reversal of 13531222 is 22213531.

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 13531222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147033 + ... + 147124.

It is an arithmetic number, because the mean of its divisors is an integer number (2647422).

Almost surely, 2^13531222 is an apocalyptic number.

13531222 is a deficient number, since it is larger than the sum of its proper divisors (7648154).

13531222 is a wasteful number, since it uses less digits than its factorization.

13531222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294182.

The product of its digits is 360, while the sum is 19.

The square root of 13531222 is about 3678.4809364736. The cubic root of 13531222 is about 238.2935788203.

Adding to 13531222 its reverse (22213531), we get a palindrome (35744753).

The spelling of 13531222 in words is "thirteen million, five hundred thirty-one thousand, two hundred twenty-two".