135955943 has 2 divisors, whose sum is σ = 135955944. Its totient is φ = 135955942.

The previous prime is 135955903. The next prime is 135955957. The reversal of 135955943 is 349559531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135955943 - 2¹⁰ = 135954919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135955894 and 135955903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135955903) 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, 67977971 + 67977972.

It is an arithmetic number, because the mean of its divisors is an integer number (67977972).

Almost surely, 2^135955943 is an apocalyptic number.

135955943 is a deficient number, since it is larger than the sum of its proper divisors (1).

135955943 is an equidigital number, since it uses as much as digits as its factorization.

135955943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 364500, while the sum is 44.

The square root of 135955943 is about 11660.0147083955. The cubic root of 135955943 is about 514.2007812749.

The spelling of 135955943 in words is "one hundred thirty-five million, nine hundred fifty-five thousand, nine hundred forty-three".