1051271 has 8 divisors (see below), whose sum is σ = 1140720. Its totient is φ = 963072.

The previous prime is 1051247. The next prime is 1051277. The reversal of 1051271 is 1721501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051271 is a prime.

It is a super-2 number, since 2×1051271² = 2210341430882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051277) 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 in 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (142590).

2^1051271 is an apocalyptic number.

1051271 is a deficient number, since it is larger than the sum of its proper divisors (89449).

1051271 is a wasteful number, since it uses less digits than its factorization.

1051271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 1051271 is about 1025.3150735262. The cubic root of 1051271 is about 101.6806299314.

Adding to 1051271 its reverse (1721501), we get a palindrome (2772772).

The spelling of 1051271 in words is "one million, fifty-one thousand, two hundred seventy-one".