135933257 has 2 divisors, whose sum is σ = 135933258. Its totient is φ = 135933256.

The previous prime is 135933247. The next prime is 135933293. The reversal of 135933257 is 752339531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122124601 + 13808656 = 11051^2 + 3716^2 .

It is a cyclic number.

It is not a de Polignac number, because 135933257 - 2¹⁰ = 135932233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135933257.

It is not a weakly prime, because it can be changed into another prime (135933247) 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, 67966628 + 67966629.

It is an arithmetic number, because the mean of its divisors is an integer number (67966629).

Almost surely, 2^135933257 is an apocalyptic number.

It is an amenable number.

135933257 is a deficient number, since it is larger than the sum of its proper divisors (1).

135933257 is an equidigital number, since it uses as much as digits as its factorization.

135933257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 38.

The square root of 135933257 is about 11659.0418560017. The cubic root of 135933257 is about 514.1721793431.

The spelling of 135933257 in words is "one hundred thirty-five million, nine hundred thirty-three thousand, two hundred fifty-seven".