6143381 has 2 divisors, whose sum is σ = 6143382. Its totient is φ = 6143380.

The previous prime is 6143359. The next prime is 6143387. The reversal of 6143381 is 1833416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 184900 = 2441^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 6143381 - 2¹⁸ = 5881237 is a prime.

It is a super-2 number, since 2×6143381² = 75482260222322, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6143381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6143387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3071690 + 3071691.

It is an arithmetic number, because the mean of its divisors is an integer number (3071691).

Almost surely, 2^6143381 is an apocalyptic number.

It is an amenable number.

6143381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6143381 is an equidigital number, since it uses as much as digits as its factorization.

6143381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 6143381 is about 2478.5844750583. The cubic root of 6143381 is about 183.1481277503.

Adding to 6143381 its reverse (1833416), we get a palindrome (7976797).

The spelling of 6143381 in words is "six million, one hundred forty-three thousand, three hundred eighty-one".