1306530447540 has 48 divisors (see below), whose sum is σ = 3659451953472. Its totient is φ = 348297005056.

The previous prime is 1306530447533. The next prime is 1306530447557. The reversal of 1306530447540 is 457440356031.

It is a junction number, because it is equal to n+sod(n) for n = 1306530447492 and 1306530447501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3282534 + ... + 3658973.

It is an arithmetic number, because the mean of its divisors is an integer number (76238582364).

Almost surely, 2^{1306530447540} is an apocalyptic number.

1306530447540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306530447540 is an abundant number, since it is smaller than the sum of its proper divisors (2352921505932).

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

1306530447540 is a wasteful number, since it uses less digits than its factorization.

1306530447540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6944656 (or 6944654 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 1306530447540 in words is "one trillion, three hundred six billion, five hundred thirty million, four hundred forty-seven thousand, five hundred forty".