1311938 has 8 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 646660.

The previous prime is 1311923. The next prime is 1311967. The reversal of 1311938 is 8391131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4478 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

2^1311938 is an apocalyptic number.

1311938 is a deficient number, since it is larger than the sum of its proper divisors (683902).

1311938 is an equidigital number, since it uses as much as digits as its factorization.

1311938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312.

The product of its digits is 648, while the sum is 26.

The square root of 1311938 is about 1145.3986205684. The cubic root of 1311938 is about 109.4723490296.

The spelling of 1311938 in words is "one million, three hundred eleven thousand, nine hundred thirty-eight".