1312365541 has 8 divisors (see below), whose sum is σ = 1390431960. Its totient is φ = 1234395648.

The previous prime is 1312365521. The next prime is 1312365569. The reversal of 1312365541 is 1455632131.

It can be written as a sum of positive squares in 4 ways, for example, as 40373316 + 1271992225 = 6354^2 + 35665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312365541 - 2⁹ = 1312365029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312365521) by changing a digit.

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, 4875 + ... + 51463.

It is an arithmetic number, because the mean of its divisors is an integer number (173803995).

Almost surely, 2^1312365541 is an apocalyptic number.

It is an amenable number.

1312365541 is a deficient number, since it is larger than the sum of its proper divisors (78066419).

1312365541 is a wasteful number, since it uses less digits than its factorization.

1312365541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48263.

The product of its digits is 10800, while the sum is 31.

The square root of 1312365541 is about 36226.5861074432. The cubic root of 1312365541 is about 1094.8423953927.

Adding to 1312365541 its reverse (1455632131), we get a palindrome (2767997672).

The spelling of 1312365541 in words is "one billion, three hundred twelve million, three hundred sixty-five thousand, five hundred forty-one".