1311374 has 4 divisors (see below), whose sum is σ = 1967064. Its totient is φ = 655686.

The previous prime is 1311367. The next prime is 1311377. The reversal of 1311374 is 4731131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4731131 = 127 ⋅37253.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327842 + ... + 327845.

It is an arithmetic number, because the mean of its divisors is an integer number (491766).

2^1311374 is an apocalyptic number.

1311374 is a deficient number, since it is larger than the sum of its proper divisors (655690).

1311374 is an equidigital number, since it uses as much as digits as its factorization.

1311374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655689.

The product of its digits is 252, while the sum is 20.

The square root of 1311374 is about 1145.1523916056. The cubic root of 1311374 is about 109.4566594532.

The spelling of 1311374 in words is "one million, three hundred eleven thousand, three hundred seventy-four".