6781141 has 2 divisors, whose sum is σ = 6781142. Its totient is φ = 6781140.

The previous prime is 6781133. The next prime is 6781153. The reversal of 6781141 is 1411876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 1164241 = 2370^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 6781141 - 2³ = 6781133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6781111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3390570 + 3390571.

It is an arithmetic number, because the mean of its divisors is an integer number (3390571).

Almost surely, 2^6781141 is an apocalyptic number.

It is an amenable number.

6781141 is a deficient number, since it is larger than the sum of its proper divisors (1).

6781141 is an equidigital number, since it uses as much as digits as its factorization.

6781141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 28.

The square root of 6781141 is about 2604.0624032461. The cubic root of 6781141 is about 189.2783428074.

The spelling of 6781141 in words is "six million, seven hundred eighty-one thousand, one hundred forty-one".