135876491 has 2 divisors, whose sum is σ = 135876492. Its totient is φ = 135876490.

The previous prime is 135876443. The next prime is 135876497. The reversal of 135876491 is 194678531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135876491 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (135876497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67938245 + 67938246.

It is an arithmetic number, because the mean of its divisors is an integer number (67938246).

Almost surely, 2^135876491 is an apocalyptic number.

135876491 is a deficient number, since it is larger than the sum of its proper divisors (1).

135876491 is an equidigital number, since it uses as much as digits as its factorization.

135876491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 135876491 is about 11656.6071821950. The cubic root of 135876491 is about 514.1005962676.

The spelling of 135876491 in words is "one hundred thirty-five million, eight hundred seventy-six thousand, four hundred ninety-one".