1311853 has 2 divisors, whose sum is σ = 1311854. Its totient is φ = 1311852.

The previous prime is 1311847. The next prime is 1311857. The reversal of 1311853 is 3581131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1162084 + 149769 = 1078^2 + 387^2 .

It is an emirp because it is prime and its reverse (3581131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311853 - 2⁹ = 1311341 is a prime.

1311853 is a lucky number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655926 + 655927.

It is an arithmetic number, because the mean of its divisors is an integer number (655927).

2^1311853 is an apocalyptic number.

It is an amenable number.

1311853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311853 is an equidigital number, since it uses as much as digits as its factorization.

1311853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 22.

The square root of 1311853 is about 1145.3615149812. The cubic root of 1311853 is about 109.4699847536.

Adding to 1311853 its reverse (3581131), we get a palindrome (4892984).

The spelling of 1311853 in words is "one million, three hundred eleven thousand, eight hundred fifty-three".