1311274 has 4 divisors (see below), whose sum is σ = 1966914. Its totient is φ = 655636.

The previous prime is 1311263. The next prime is 1311287. The reversal of 1311274 is 4721131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4721131 = 1201 ⋅3931.

It can be written as a sum of positive squares in only one way, i.e., 710649 + 600625 = 843^2 + 775^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327817 + ... + 327820.

2^1311274 is an apocalyptic number.

1311274 is a deficient number, since it is larger than the sum of its proper divisors (655640).

1311274 is an equidigital number, since it uses as much as digits as its factorization.

1311274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655639.

The product of its digits is 168, while the sum is 19.

The square root of 1311274 is about 1145.1087284621. The cubic root of 1311274 is about 109.4538771439.

It can be divided in two parts, 131127 and 4, that added together give a palindrome (131131).

The spelling of 1311274 in words is "one million, three hundred eleven thousand, two hundred seventy-four".