1071331 has 4 divisors (see below), whose sum is σ = 1073464. Its totient is φ = 1069200.

The previous prime is 1071313. The next prime is 1071337. The reversal of 1071331 is 1331701.

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: 1331701 = 7 ⋅190243.

It is a cyclic number.

It is not a de Polignac number, because 1071331 - 2¹⁵ = 1038563 is a prime.

It is a super-2 number, since 2×1071331² = 2295500223122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071337) 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, 151 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (268366).

2^1071331 is an apocalyptic number.

1071331 is a deficient number, since it is larger than the sum of its proper divisors (2133).

1071331 is an equidigital number, since it uses as much as digits as its factorization.

1071331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 1071331 is about 1035.0512064628. The cubic root of 1071331 is about 102.3233045400.

The spelling of 1071331 in words is "one million, seventy-one thousand, three hundred thirty-one".