13362231 has 4 divisors (see below), whose sum is σ = 17816312. Its totient is φ = 8908152.

The previous prime is 13362229. The next prime is 13362247. The reversal of 13362231 is 13226331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13226331 = 3 ⋅4408777.

It is not a de Polignac number, because 13362231 - 2¹ = 13362229 is a prime.

It is a super-2 number, since 2×13362231² = 357098434594722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13362198 and 13362207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13362211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2227036 + ... + 2227041.

It is an arithmetic number, because the mean of its divisors is an integer number (4454078).

Almost surely, 2^13362231 is an apocalyptic number.

13362231 is a deficient number, since it is larger than the sum of its proper divisors (4454081).

13362231 is an equidigital number, since it uses as much as digits as its factorization.

13362231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454080.

The product of its digits is 648, while the sum is 21.

The square root of 13362231 is about 3655.4385509813. The cubic root of 13362231 is about 237.2974065486.

Adding to 13362231 its reverse (13226331), we get a palindrome (26588562).

The spelling of 13362231 in words is "thirteen million, three hundred sixty-two thousand, two hundred thirty-one".