134791479131 has 4 divisors (see below), whose sum is σ = 139439461200. Its totient is φ = 130143497064.

The previous prime is 134791479103. The next prime is 134791479133. The reversal of 134791479131 is 131974197431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131974197431 = 229 ⋅576306539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134791479131 is a prime.

It is a super-2 number, since 2×134791479131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134791479131.

It is not an unprimeable number, because it can be changed into a prime (134791479133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323990991 + ... + 2323991048.

It is an arithmetic number, because the mean of its divisors is an integer number (34859865300).

Almost surely, 2^134791479131 is an apocalyptic number.

134791479131 is a deficient number, since it is larger than the sum of its proper divisors (4647982069).

134791479131 is an equidigital number, since it uses as much as digits as its factorization.

134791479131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647982068.

The product of its digits is 571536, while the sum is 50.

The spelling of 134791479131 in words is "one hundred thirty-four billion, seven hundred ninety-one million, four hundred seventy-nine thousand, one hundred thirty-one".