1311407 has 2 divisors, whose sum is σ = 1311408. Its totient is φ = 1311406.

The previous prime is 1311403. The next prime is 1311419. The reversal of 1311407 is 7041131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311407 - 2² = 1311403 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655703 + 655704.

It is an arithmetic number, because the mean of its divisors is an integer number (655704).

2^1311407 is an apocalyptic number.

1311407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311407 is an equidigital number, since it uses as much as digits as its factorization.

1311407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1311407 is about 1145.1668000776. The cubic root of 1311407 is about 109.4575775842.

Subtracting from 1311407 its sum of digits (17), we obtain a triangular number (1311390 = T₁₆₁₉).

Adding to 1311407 its reverse (7041131), we get a palindrome (8352538).

The spelling of 1311407 in words is "one million, three hundred eleven thousand, four hundred seven".