1312533041 has 4 divisors (see below), whose sum is σ = 1344546084. Its totient is φ = 1280520000.

The previous prime is 1312533007. The next prime is 1312533043. The reversal of 1312533041 is 1403352131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1403352131 = 83 ⋅16907857.

It can be written as a sum of positive squares in 2 ways, for example, as 696748816 + 615784225 = 26396^2 + 24815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312533041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312532998 and 1312533016.

It is not an unprimeable number, because it can be changed into a prime (1312533043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16006460 + ... + 16006541.

It is an arithmetic number, because the mean of its divisors is an integer number (336136521).

Almost surely, 2^1312533041 is an apocalyptic number.

It is an amenable number.

1312533041 is a deficient number, since it is larger than the sum of its proper divisors (32013043).

1312533041 is an equidigital number, since it uses as much as digits as its factorization.

1312533041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32013042.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1312533041 is about 36228.8978717267. The cubic root of 1312533041 is about 1094.8889724309. Note that the first 3 decimals are identical.

Adding to 1312533041 its reverse (1403352131), we get a palindrome (2715885172).

The spelling of 1312533041 in words is "one billion, three hundred twelve million, five hundred thirty-three thousand, forty-one".