1071256 has 16 divisors (see below), whose sum is σ = 2019600. Its totient is φ = 532704.

The previous prime is 1071253. The next prime is 1071269. The reversal of 1071256 is 6521701.

It is a super-2 number, since 2×1071256² = 2295178835072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071253) 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 3 ways as a sum of consecutive naturals, for example, 2686 + ... + 3058.

It is an arithmetic number, because the mean of its divisors is an integer number (126225).

2^1071256 is an apocalyptic number.

It is an amenable number.

1071256 is a deficient number, since it is larger than the sum of its proper divisors (948344).

1071256 is a wasteful number, since it uses less digits than its factorization.

1071256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 734 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1071256 is about 1035.0149757371. The cubic root of 1071256 is about 102.3209167231.

Adding to 1071256 its reverse (6521701), we get a palindrome (7592957).

The spelling of 1071256 in words is "one million, seventy-one thousand, two hundred fifty-six".