1275843460 has 24 divisors (see below), whose sum is σ = 2685153240. Its totient is φ = 509217024.

The previous prime is 1275843449. The next prime is 1275843461. The reversal of 1275843460 is 643485721.

It can be written as a sum of positive squares in 4 ways, for example, as 567964224 + 707879236 = 23832^2 + 26606^2 .

It is not an unprimeable number, because it can be changed into a prime (1275843461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60655 + ... + 78934.

It is an arithmetic number, because the mean of its divisors is an integer number (111881385).

Almost surely, 2^1275843460 is an apocalyptic number.

1275843460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275843460 is an abundant number, since it is smaller than the sum of its proper divisors (1409309780).

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

1275843460 is a wasteful number, since it uses less digits than its factorization.

1275843460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140055 (or 140053 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1275843460 is about 35718.9509924354. The cubic root of 1275843460 is about 1084.5905028760.

It can be divided in two parts, 127584 and 3460, that added together give a square (131044 = 362²).

The spelling of 1275843460 in words is "one billion, two hundred seventy-five million, eight hundred forty-three thousand, four hundred sixty".