1306112540 has 24 divisors (see below), whose sum is σ = 2748354000. Its totient is φ = 521394048.

The previous prime is 1306112531. The next prime is 1306112557. The reversal of 1306112540 is 452116031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55457 + ... + 75416.

It is an arithmetic number, because the mean of its divisors is an integer number (114514750).

Almost surely, 2^1306112540 is an apocalyptic number.

1306112540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306112540 is an abundant number, since it is smaller than the sum of its proper divisors (1442241460).

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

1306112540 is a wasteful number, since it uses less digits than its factorization.

1306112540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131381 (or 131379 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1306112540 is about 36140.1790255665. The cubic root of 1306112540 is about 1093.1007687064.

Adding to 1306112540 its reverse (452116031), we get a palindrome (1758228571).

The spelling of 1306112540 in words is "one billion, three hundred six million, one hundred twelve thousand, five hundred forty".