1275801160 has 64 divisors (see below), whose sum is σ = 2932271280. Its totient is φ = 499399680.

The previous prime is 1275801119. The next prime is 1275801169. The reversal of 1275801160 is 611085721.

It can be written as a sum of positive squares in 8 ways, for example, as 937461924 + 338339236 = 30618^2 + 18394^2 .

It is not an unprimeable number, because it can be changed into a prime (1275801169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553550 + ... + 1554370.

Almost surely, 2^1275801160 is an apocalyptic number.

1275801160 is a gapful number since it is divisible by the number (10) 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 1275801160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466135640).

1275801160 is an abundant number, since it is smaller than the sum of its proper divisors (1656470120).

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

1275801160 is a wasteful number, since it uses less digits than its factorization.

1275801160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 1275801160 is about 35718.3588648751. The cubic root of 1275801160 is about 1084.5785163780.

Adding to 1275801160 its reverse (611085721), we get a palindrome (1886886881).

The spelling of 1275801160 in words is "one billion, two hundred seventy-five million, eight hundred one thousand, one hundred sixty".