1275331 has 4 divisors (see below), whose sum is σ = 1280664. Its totient is φ = 1270000.

The previous prime is 1275319. The next prime is 1275341. The reversal of 1275331 is 1335721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1335721 = 677 ⋅1973.

It is a cyclic number.

It is not a de Polignac number, because 1275331 - 2⁷ = 1275203 is a prime.

It is a super-2 number, since 2×1275331² = 3252938319122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275341) 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, 2290 + ... + 2791.

It is an arithmetic number, because the mean of its divisors is an integer number (320166).

2^1275331 is an apocalyptic number.

1275331 is a deficient number, since it is larger than the sum of its proper divisors (5333).

1275331 is an equidigital number, since it uses as much as digits as its factorization.

1275331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332.

The product of its digits is 630, while the sum is 22.

The square root of 1275331 is about 1129.3055388158. The cubic root of 1275331 is about 108.4445269886. Note that the first 3 decimals are identical.

The spelling of 1275331 in words is "one million, two hundred seventy-five thousand, three hundred thirty-one".