1312625131 has 8 divisors (see below), whose sum is σ = 1391688000. Its totient is φ = 1233767808.

The previous prime is 1312625117. The next prime is 1312625143. The reversal of 1312625131 is 1315262131.

It is a happy number.

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 1312625131 - 2⁹ = 1312624619 is a prime.

It is a super-2 number, since 2×1312625131² = 3445969469065534322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312625096 and 1312625105.

It is not an unprimeable number, because it can be changed into a prime (1312625101) 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, 38131 + ... + 63868.

It is an arithmetic number, because the mean of its divisors is an integer number (173961000).

Almost surely, 2^1312625131 is an apocalyptic number.

1312625131 is a deficient number, since it is larger than the sum of its proper divisors (79062869).

1312625131 is a wasteful number, since it uses less digits than its factorization.

1312625131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102773.

The product of its digits is 1080, while the sum is 25.

The square root of 1312625131 is about 36230.1687961842. The cubic root of 1312625131 is about 1094.9145783812.

Adding to 1312625131 its reverse (1315262131), we get a palindrome (2627887262).

It can be divided in two parts, 131 and 2625131, that added together give a palindrome (2625262).

The spelling of 1312625131 in words is "one billion, three hundred twelve million, six hundred twenty-five thousand, one hundred thirty-one".