13223481 has 4 divisors (see below), whose sum is σ = 17631312. Its totient is φ = 8815652.

The previous prime is 13223473. The next prime is 13223527. The reversal of 13223481 is 18432231.

13223481 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13223481 - 2³ = 13223473 is a prime.

It is a super-2 number, since 2×13223481² = 349720899514722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13223401) 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, 2203911 + ... + 2203916.

It is an arithmetic number, because the mean of its divisors is an integer number (4407828).

Almost surely, 2^13223481 is an apocalyptic number.

It is an amenable number.

13223481 is a deficient number, since it is larger than the sum of its proper divisors (4407831).

13223481 is an equidigital number, since it uses as much as digits as its factorization.

13223481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407830.

The product of its digits is 1152, while the sum is 24.

The square root of 13223481 is about 3636.4104553804. The cubic root of 13223481 is about 236.4732018975.

The spelling of 13223481 in words is "thirteen million, two hundred twenty-three thousand, four hundred eighty-one".