135193633 has 2 divisors, whose sum is σ = 135193634. Its totient is φ = 135193632.

The previous prime is 135193631. The next prime is 135193649. The reversal of 135193633 is 336391531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108743184 + 26450449 = 10428^2 + 5143^2 .

It is a cyclic number.

It is not a de Polignac number, because 135193633 - 2¹ = 135193631 is a prime.

Together with 135193631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (135193631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67596816 + 67596817.

It is an arithmetic number, because the mean of its divisors is an integer number (67596817).

Almost surely, 2^135193633 is an apocalyptic number.

It is an amenable number.

135193633 is a deficient number, since it is larger than the sum of its proper divisors (1).

135193633 is an equidigital number, since it uses as much as digits as its factorization.

135193633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21870, while the sum is 34.

The square root of 135193633 is about 11627.2796904521. The cubic root of 135193633 is about 513.2379318503.

The spelling of 135193633 in words is "one hundred thirty-five million, one hundred ninety-three thousand, six hundred thirty-three".