1311540716 has 6 divisors (see below), whose sum is σ = 2295196260. Its totient is φ = 655770356.

The previous prime is 1311540673. The next prime is 1311540719. The reversal of 1311540716 is 6170451131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311540719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163942586 + ... + 163942593.

It is an arithmetic number, because the mean of its divisors is an integer number (382532710).

Almost surely, 2^1311540716 is an apocalyptic number.

It is an amenable number.

1311540716 is a deficient number, since it is larger than the sum of its proper divisors (983655544).

1311540716 is a wasteful number, since it uses less digits than its factorization.

1311540716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327885183 (or 327885181 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 1311540716 is about 36215.2000684795. The cubic root of 1311540716 is about 1094.6129769349.

Adding to 1311540716 its reverse (6170451131), we get a palindrome (7481991847).

The spelling of 1311540716 in words is "one billion, three hundred eleven million, five hundred forty thousand, seven hundred sixteen".