12850381 has 2 divisors, whose sum is σ = 12850382. Its totient is φ = 12850380.

The previous prime is 12850363. The next prime is 12850391. The reversal of 12850381 is 18305821.

12850381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 837225 = 3466^2 + 915^2 .

It is a cyclic number.

It is not a de Polignac number, because 12850381 - 2⁵ = 12850349 is a prime.

It is a super-2 number, since 2×12850381² = 330264583690322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12850391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6425190 + 6425191.

It is an arithmetic number, because the mean of its divisors is an integer number (6425191).

Almost surely, 2^12850381 is an apocalyptic number.

It is an amenable number.

12850381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12850381 is an equidigital number, since it uses as much as digits as its factorization.

12850381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12850381 is about 3584.7428080687. The cubic root of 12850381 is about 234.2279233929.

It can be divided in two parts, 12850 and 381, that added together give a palindrome (13231).

The spelling of 12850381 in words is "twelve million, eight hundred fifty thousand, three hundred eighty-one".