12207381 has 16 divisors (see below), whose sum is σ = 16957248. Its totient is φ = 7804800.

The previous prime is 12207341. The next prime is 12207389. The reversal of 12207381 is 18370221.

It is not a de Polignac number, because 12207381 - 2⁹ = 12206869 is a prime.

It is a super-2 number, since 2×12207381² = 298040301758322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12207389) 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 15 ways as a sum of consecutive naturals, for example, 6690 + ... + 8316.

It is an arithmetic number, because the mean of its divisors is an integer number (1059828).

Almost surely, 2^12207381 is an apocalyptic number.

It is an amenable number.

12207381 is a deficient number, since it is larger than the sum of its proper divisors (4749867).

12207381 is a wasteful number, since it uses less digits than its factorization.

12207381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 12207381 is about 3493.9062666305. The cubic root of 12207381 is about 230.2541676670.

The spelling of 12207381 in words is "twelve million, two hundred seven thousand, three hundred eighty-one".