1271241552 has 160 divisors (see below), whose sum is σ = 3908829184. Its totient is φ = 348727680.

The previous prime is 1271241539. The next prime is 1271241599. The reversal of 1271241552 is 2551421721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10009713 + ... + 10009839.

Almost surely, 2^1271241552 is an apocalyptic number.

1271241552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271241552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1954414592).

1271241552 is an abundant number, since it is smaller than the sum of its proper divisors (2637587632).

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

1271241552 is an equidigital number, since it uses as much as digits as its factorization.

1271241552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 170 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 1271241552 is about 35654.4745018069. The cubic root of 1271241552 is about 1083.2849093832.

The spelling of 1271241552 in words is "one billion, two hundred seventy-one million, two hundred forty-one thousand, five hundred fifty-two".