1391113 has 2 divisors, whose sum is σ = 1391114. Its totient is φ = 1391112.

The previous prime is 1391087. The next prime is 1391119. The reversal of 1391113 is 3111931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1327104 + 64009 = 1152^2 + 253^2 .

It is an emirp because it is prime and its reverse (3111931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1391113 - 2⁵ = 1391081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1391119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695556 + 695557.

It is an arithmetic number, because the mean of its divisors is an integer number (695557).

2^1391113 is an apocalyptic number.

It is an amenable number.

1391113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1391113 is an equidigital number, since it uses as much as digits as its factorization.

1391113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81, while the sum is 19.

The square root of 1391113 is about 1179.4545349440. The cubic root of 1391113 is about 111.6316823157.

It can be divided in two parts, 13911 and 13, that added together give a square (13924 = 118²).

The spelling of 1391113 in words is "one million, three hundred ninety-one thousand, one hundred thirteen".