4135520131 has 2 divisors, whose sum is σ = 4135520132. Its totient is φ = 4135520130.

The previous prime is 4135520057. The next prime is 4135520161. The reversal of 4135520131 is 1310255314.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4135520131 is a prime.

It is a super-2 number, since 2×4135520131² = 34205053507812514322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4135520096 and 4135520105.

It is not a weakly prime, because it can be changed into another prime (4135520161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067760065 + 2067760066.

It is an arithmetic number, because the mean of its divisors is an integer number (2067760066).

Almost surely, 2^4135520131 is an apocalyptic number.

4135520131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4135520131 is an equidigital number, since it uses as much as digits as its factorization.

4135520131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 4135520131 is about 64308.0098510287. The cubic root of 4135520131 is about 1605.1293886754.

Adding to 4135520131 its reverse (1310255314), we get a palindrome (5445775445).

The spelling of 4135520131 in words is "four billion, one hundred thirty-five million, five hundred twenty thousand, one hundred thirty-one".