3114781 has 2 divisors, whose sum is σ = 3114782. Its totient is φ = 3114780.

The previous prime is 3114743. The next prime is 3114809. The reversal of 3114781 is 1874113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2576025 + 538756 = 1605^2 + 734^2 .

It is a cyclic number.

It is not a de Polignac number, because 3114781 - 2¹⁷ = 2983709 is a prime.

It is a super-2 number, since 2×3114781² = 19403721355922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3114701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557390 + 1557391.

It is an arithmetic number, because the mean of its divisors is an integer number (1557391).

Almost surely, 2^3114781 is an apocalyptic number.

It is an amenable number.

3114781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3114781 is an equidigital number, since it uses as much as digits as its factorization.

3114781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 25.

The square root of 3114781 is about 1764.8742164812. The cubic root of 3114781 is about 146.0413500192.

Adding to 3114781 its reverse (1874113), we get a palindrome (4988894).

The spelling of 3114781 in words is "three million, one hundred fourteen thousand, seven hundred eighty-one".