1375111 has 2 divisors, whose sum is σ = 1375112. Its totient is φ = 1375110.

The previous prime is 1375109. The next prime is 1375117. The reversal of 1375111 is 1115731.

It is a weak prime.

It is an emirp because it is prime and its reverse (1115731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375111 - 2¹ = 1375109 is a prime.

Together with 1375109, 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 (1375117) 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, 687555 + 687556.

It is an arithmetic number, because the mean of its divisors is an integer number (687556).

2^1375111 is an apocalyptic number.

1375111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375111 is an equidigital number, since it uses as much as digits as its factorization.

1375111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105, while the sum is 19.

The square root of 1375111 is about 1172.6512695597. The cubic root of 1375111 is about 111.2019967121.

The spelling of 1375111 in words is "one million, three hundred seventy-five thousand, one hundred eleven".