12357381 has 8 divisors (see below), whose sum is σ = 16827264. Its totient is φ = 8062880.

The previous prime is 12357379. The next prime is 12357407. The reversal of 12357381 is 18375321.

12357381 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12357381 - 2¹ = 12357379 is a prime.

It is a super-2 number, since 2×12357381² = 305409730358322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12357781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43680 + ... + 43961.

It is an arithmetic number, because the mean of its divisors is an integer number (2103408).

Almost surely, 2^12357381 is an apocalyptic number.

It is an amenable number.

12357381 is a deficient number, since it is larger than the sum of its proper divisors (4469883).

12357381 is an equidigital number, since it uses as much as digits as its factorization.

12357381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87691.

The product of its digits is 5040, while the sum is 30.

The square root of 12357381 is about 3515.3066722549. The cubic root of 12357381 is about 231.1934250693.

The spelling of 12357381 in words is "twelve million, three hundred fifty-seven thousand, three hundred eighty-one".