1312405134 has 16 divisors (see below), whose sum is σ = 2779211088. Its totient is φ = 411734912.

The previous prime is 1312405123. The next prime is 1312405141. The reversal of 1312405134 is 4315042131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6433257 + ... + 6433460.

It is an arithmetic number, because the mean of its divisors is an integer number (173700693).

Almost surely, 2^1312405134 is an apocalyptic number.

1312405134 is an abundant number, since it is smaller than the sum of its proper divisors (1466805954).

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

1312405134 is a wasteful number, since it uses less digits than its factorization.

1312405134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866739.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1312405134 is about 36227.1325666275. The cubic root of 1312405134 is about 1094.8534054499.

Adding to 1312405134 its reverse (4315042131), we get a palindrome (5627447265).

The spelling of 1312405134 in words is "one billion, three hundred twelve million, four hundred five thousand, one hundred thirty-four".