1312135147 has 2 divisors, whose sum is σ = 1312135148. Its totient is φ = 1312135146.

The previous prime is 1312135127. The next prime is 1312135159. The reversal of 1312135147 is 7415312131.

It is a strong prime.

It is an emirp because it is prime and its reverse (7415312131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312135147 - 2¹¹ = 1312133099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312135127) by changing a digit.

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 as a sum of consecutive naturals, namely, 656067573 + 656067574.

It is an arithmetic number, because the mean of its divisors is an integer number (656067574).

Almost surely, 2^1312135147 is an apocalyptic number.

1312135147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312135147 is an equidigital number, since it uses as much as digits as its factorization.

1312135147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 1312135147 is about 36223.4060656918. The cubic root of 1312135147 is about 1094.7783228271.

Adding to 1312135147 its reverse (7415312131), we get a palindrome (8727447278).

The spelling of 1312135147 in words is "one billion, three hundred twelve million, one hundred thirty-five thousand, one hundred forty-seven".