1371256 has 16 divisors (see below), whose sum is σ = 2588040. Its totient is φ = 681120.

The previous prime is 1371229. The next prime is 1371259. The reversal of 1371256 is 6521731.

It is a self number, because there is not a number n which added to its sum of digits gives 1371256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975 + ... + 1921.

2^1371256 is an apocalyptic number.

It is an amenable number.

1371256 is a deficient number, since it is larger than the sum of its proper divisors (1216784).

1371256 is a wasteful number, since it uses less digits than its factorization.

1371256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1130 counting only the distinct ones).

The product of its digits is 1260, while the sum is 25.

The square root of 1371256 is about 1171.0064047647. The cubic root of 1371256 is about 111.0979845234.

Adding to 1371256 its reverse (6521731), we get a palindrome (7892987).

The spelling of 1371256 in words is "one million, three hundred seventy-one thousand, two hundred fifty-six".