1313134133 has 4 divisors (see below), whose sum is σ = 1313506860. Its totient is φ = 1312761408.

The previous prime is 1313134093. The next prime is 1313134157. The reversal of 1313134133 is 3314313131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3314313131 = 1609 ⋅2059859.

It can be written as a sum of positive squares in 2 ways, for example, as 269714929 + 1043419204 = 16423^2 + 32302^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313134133 - 2¹⁰ = 1313133109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313134099 and 1313134108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313184133) 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, 181028 + ... + 188141.

It is an arithmetic number, because the mean of its divisors is an integer number (328376715).

Almost surely, 2^1313134133 is an apocalyptic number.

It is an amenable number.

1313134133 is a deficient number, since it is larger than the sum of its proper divisors (372727).

1313134133 is an equidigital number, since it uses as much as digits as its factorization.

1313134133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372726.

The product of its digits is 972, while the sum is 23.

The square root of 1313134133 is about 36237.1926754819. The cubic root of 1313134133 is about 1095.0560865887.

Adding to 1313134133 its reverse (3314313131), we get a palindrome (4627447264).

The spelling of 1313134133 in words is "one billion, three hundred thirteen million, one hundred thirty-four thousand, one hundred thirty-three".