1386841111 has 2 divisors, whose sum is σ = 1386841112. Its totient is φ = 1386841110.

The previous prime is 1386841109. The next prime is 1386841123. The reversal of 1386841111 is 1111486831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1386841111 - 2¹ = 1386841109 is a prime.

Together with 1386841109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386841151) 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, 693420555 + 693420556.

It is an arithmetic number, because the mean of its divisors is an integer number (693420556).

Almost surely, 2^1386841111 is an apocalyptic number.

1386841111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386841111 is an equidigital number, since it uses as much as digits as its factorization.

1386841111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 34.

The square root of 1386841111 is about 37240.3156672980. The cubic root of 1386841111 is about 1115.1729737612.

It can be divided in two parts, 1386841 and 111, that multiplied together give a palindrome (153939351).

The spelling of 1386841111 in words is "one billion, three hundred eighty-six million, eight hundred forty-one thousand, one hundred eleven".