135580043 has 2 divisors, whose sum is σ = 135580044. Its totient is φ = 135580042.

The previous prime is 135579979. The next prime is 135580069. The reversal of 135580043 is 340085531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135580043 - 2⁶ = 135579979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135579988 and 135580015.

It is not a weakly prime, because it can be changed into another prime (135580073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67790021 + 67790022.

It is an arithmetic number, because the mean of its divisors is an integer number (67790022).

Almost surely, 2^135580043 is an apocalyptic number.

135580043 is a deficient number, since it is larger than the sum of its proper divisors (1).

135580043 is an equidigital number, since it uses as much as digits as its factorization.

135580043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 135580043 is about 11643.8843604701. The cubic root of 135580043 is about 513.7264450497.

The spelling of 135580043 in words is "one hundred thirty-five million, five hundred eighty thousand, forty-three".