1311763 has 4 divisors (see below), whose sum is σ = 1317448. Its totient is φ = 1306080.

The previous prime is 1311749. The next prime is 1311767. The reversal of 1311763 is 3671131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1311763 - 2⁹ = 1311251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2481 + ... + 2962.

It is an arithmetic number, because the mean of its divisors is an integer number (329362).

2^1311763 is an apocalyptic number.

1311763 is a deficient number, since it is larger than the sum of its proper divisors (5685).

1311763 is an equidigital number, since it uses as much as digits as its factorization.

1311763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684.

The product of its digits is 378, while the sum is 22.

The square root of 1311763 is about 1145.3222254021. The cubic root of 1311763 is about 109.4674812912.

Adding to 1311763 its reverse (3671131), we get a palindrome (4982894).

The spelling of 1311763 in words is "one million, three hundred eleven thousand, seven hundred sixty-three".