135218053 has 2 divisors, whose sum is σ = 135218054. Its totient is φ = 135218052.

The previous prime is 135218047. The next prime is 135218071. The reversal of 135218053 is 350812531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131285764 + 3932289 = 11458^2 + 1983^2 .

It is a cyclic number.

It is not a de Polignac number, because 135218053 - 2⁵ = 135218021 is a prime.

It is a super-2 number, since 2×135218053² = 36567843714221618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135218023) 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, 67609026 + 67609027.

It is an arithmetic number, because the mean of its divisors is an integer number (67609027).

Almost surely, 2^135218053 is an apocalyptic number.

It is an amenable number.

135218053 is a deficient number, since it is larger than the sum of its proper divisors (1).

135218053 is an equidigital number, since it uses as much as digits as its factorization.

135218053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 135218053 is about 11628.3297596860. The cubic root of 135218053 is about 513.2688320129.

The spelling of 135218053 in words is "one hundred thirty-five million, two hundred eighteen thousand, fifty-three".