135529993 has 2 divisors, whose sum is σ = 135529994. Its totient is φ = 135529992.

The previous prime is 135529987. The next prime is 135530041. The reversal of 135529993 is 399925531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135419769 + 110224 = 11637^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 135529993 - 2⁹ = 135529481 is a prime.

It is not a weakly prime, because it can be changed into another prime (135529913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67764996 + 67764997.

It is an arithmetic number, because the mean of its divisors is an integer number (67764997).

Almost surely, 2^135529993 is an apocalyptic number.

It is an amenable number.

135529993 is a deficient number, since it is larger than the sum of its proper divisors (1).

135529993 is an equidigital number, since it uses as much as digits as its factorization.

135529993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 328050, while the sum is 46.

The square root of 135529993 is about 11641.7349652017. The cubic root of 135529993 is about 513.6632224383.

The spelling of 135529993 in words is "one hundred thirty-five million, five hundred twenty-nine thousand, nine hundred ninety-three".