12454381 has 2 divisors, whose sum is σ = 12454382. Its totient is φ = 12454380.

The previous prime is 12454373. The next prime is 12454397. The reversal of 12454381 is 18345421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11628100 + 826281 = 3410^2 + 909^2 .

It is a cyclic number.

It is not a de Polignac number, because 12454381 - 2³ = 12454373 is a prime.

It is a super-2 number, since 2×12454381² = 310223212186322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12455381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227190 + 6227191.

It is an arithmetic number, because the mean of its divisors is an integer number (6227191).

Almost surely, 2^12454381 is an apocalyptic number.

It is an amenable number.

12454381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12454381 is an equidigital number, since it uses as much as digits as its factorization.

12454381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 12454381 is about 3529.0765080967. The cubic root of 12454381 is about 231.7967713429.

The spelling of 12454381 in words is "twelve million, four hundred fifty-four thousand, three hundred eighty-one".