1306261134260 has 24 divisors (see below), whose sum is σ = 2817287529000. Its totient is φ = 508382711424.

The previous prime is 1306261134253. The next prime is 1306261134307. The reversal of 1306261134260 is 624311626031.

It can be written as a sum of positive squares in 4 ways, for example, as 780653534116 + 525607600144 = 883546^2 + 724988^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1306261134260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882608135 + ... + 882609614.

It is an arithmetic number, because the mean of its divisors is an integer number (117386980375).

Almost surely, 2^{1306261134260} is an apocalyptic number.

1306261134260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306261134260 is an abundant number, since it is smaller than the sum of its proper divisors (1511026394740).

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

1306261134260 is a wasteful number, since it uses less digits than its factorization.

1306261134260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765217795 (or 1765217793 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1306261134260 in words is "one trillion, three hundred six billion, two hundred sixty-one million, one hundred thirty-four thousand, two hundred sixty".