12297381 has 16 divisors (see below), whose sum is σ = 16780224. Its totient is φ = 8008704.

The previous prime is 12297371. The next prime is 12297391. The reversal of 12297381 is 18379221.

It is an interprime number because it is at equal distance from previous prime (12297371) and next prime (12297391).

It is not a de Polignac number, because 12297381 - 2⁵ = 12297349 is a prime.

It is a super-2 number, since 2×12297381² = 302451158918322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12297301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38635 + ... + 38951.

It is an arithmetic number, because the mean of its divisors is an integer number (1048764).

Almost surely, 2^12297381 is an apocalyptic number.

It is an amenable number.

12297381 is a deficient number, since it is larger than the sum of its proper divisors (4482843).

12297381 is a wasteful number, since it uses less digits than its factorization.

12297381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 6048, while the sum is 33.

The square root of 12297381 is about 3506.7621818424. The cubic root of 12297381 is about 230.8186391558.

The spelling of 12297381 in words is "twelve million, two hundred ninety-seven thousand, three hundred eighty-one".