13422081 has 4 divisors (see below), whose sum is σ = 17896112. Its totient is φ = 8948052.

The previous prime is 13422077. The next prime is 13422089. The reversal of 13422081 is 18022431.

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 not a de Polignac number, because 13422081 - 2² = 13422077 is a prime.

It is a super-2 number, since 2×13422081² = 360304516741122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422089) 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, 2237011 + ... + 2237016.

It is an arithmetic number, because the mean of its divisors is an integer number (4474028).

Almost surely, 2^13422081 is an apocalyptic number.

It is an amenable number.

13422081 is a deficient number, since it is larger than the sum of its proper divisors (4474031).

13422081 is an equidigital number, since it uses as much as digits as its factorization.

13422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474030.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 13422081 is about 3663.6158368475. The cubic root of 13422081 is about 237.6511672898.

The spelling of 13422081 in words is "thirteen million, four hundred twenty-two thousand, eighty-one".