1256132276 has 48 divisors (see below), whose sum is σ = 2613338112. Its totient is φ = 516952800.

The previous prime is 1256132263. The next prime is 1256132299. The reversal of 1256132276 is 6722316521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108185 + ... + 119231.

It is an arithmetic number, because the mean of its divisors is an integer number (54444544).

Almost surely, 2^1256132276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1256132276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306669056).

1256132276 is an abundant number, since it is smaller than the sum of its proper divisors (1357205836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1256132276 is a wasteful number, since it uses less digits than its factorization.

1256132276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220 (or 11218 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 1256132276 is about 35441.9564358403. The cubic root of 1256132276 is about 1078.9760173189.

Adding to 1256132276 its reverse (6722316521), we get a palindrome (7978448797).

The spelling of 1256132276 in words is "one billion, two hundred fifty-six million, one hundred thirty-two thousand, two hundred seventy-six".