135341993 has 2 divisors, whose sum is σ = 135341994. Its totient is φ = 135341992.

The previous prime is 135341989. The next prime is 135342013. The reversal of 135341993 is 399143531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132411049 + 2930944 = 11507^2 + 1712^2 .

It is a cyclic number.

It is not a de Polignac number, because 135341993 - 2² = 135341989 is a prime.

It is not a weakly prime, because it can be changed into another prime (135341903) 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, 67670996 + 67670997.

It is an arithmetic number, because the mean of its divisors is an integer number (67670997).

Almost surely, 2^135341993 is an apocalyptic number.

It is an amenable number.

135341993 is a deficient number, since it is larger than the sum of its proper divisors (1).

135341993 is an equidigital number, since it uses as much as digits as its factorization.

135341993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 38.

The square root of 135341993 is about 11633.6577652946. The cubic root of 135341993 is about 513.4256037637.

The spelling of 135341993 in words is "one hundred thirty-five million, three hundred forty-one thousand, nine hundred ninety-three".