13667213 has 8 divisors (see below), whose sum is σ = 16441920. Its totient is φ = 11098080.

The previous prime is 13667209. The next prime is 13667231. The reversal of 13667213 is 31276631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13667213 - 2² = 13667209 is a prime.

It is a super-2 number, since 2×13667213² = 373585422374738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13667243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51248 + ... + 51513.

It is an arithmetic number, because the mean of its divisors is an integer number (2055240).

Almost surely, 2^13667213 is an apocalyptic number.

It is an amenable number.

13667213 is a deficient number, since it is larger than the sum of its proper divisors (2774707).

13667213 is a wasteful number, since it uses less digits than its factorization.

13667213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102787.

The product of its digits is 4536, while the sum is 29.

The square root of 13667213 is about 3696.9193932246. The cubic root of 13667213 is about 239.0892158305.

The spelling of 13667213 in words is "thirteen million, six hundred sixty-seven thousand, two hundred thirteen".