1312415316 has 36 divisors (see below), whose sum is σ = 3362946132. Its totient is φ = 431478144.

The previous prime is 1312415303. The next prime is 1312415347. The reversal of 1312415316 is 6135142131.

It is a happy number.

1312415316 is a `hidden beast` number, since 1 + 3 + 124 + 1 + 531 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1110888900 + 201526416 = 33330^2 + 14196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1312415316.

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 11 ways as a sum of consecutive naturals, for example, 247071 + ... + 252326.

Almost surely, 2^1312415316 is an apocalyptic number.

It is an amenable number.

1312415316 is an abundant number, since it is smaller than the sum of its proper divisors (2050530816).

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

1312415316 is a wasteful number, since it uses less digits than its factorization.

1312415316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499480 (or 499475 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1312415316 is about 36227.2730963842. The cubic root of 1312415316 is about 1094.8562368338.

Adding to 1312415316 its reverse (6135142131), we get a palindrome (7447557447).

The spelling of 1312415316 in words is "one billion, three hundred twelve million, four hundred fifteen thousand, three hundred sixteen".