135892291 has 2 divisors, whose sum is σ = 135892292. Its totient is φ = 135892290.

The previous prime is 135892259. The next prime is 135892301. The reversal of 135892291 is 192298531.

It is a strong prime.

It is an emirp because it is prime and its reverse (192298531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135892291 - 2⁵ = 135892259 is a prime.

It is not a weakly prime, because it can be changed into another prime (135892241) 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, 67946145 + 67946146.

It is an arithmetic number, because the mean of its divisors is an integer number (67946146).

Almost surely, 2^135892291 is an apocalyptic number.

135892291 is a deficient number, since it is larger than the sum of its proper divisors (1).

135892291 is an equidigital number, since it uses as much as digits as its factorization.

135892291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 135892291 is about 11657.2848897160. The cubic root of 135892291 is about 514.1205223896.

The spelling of 135892291 in words is "one hundred thirty-five million, eight hundred ninety-two thousand, two hundred ninety-one".