135303253 has 2 divisors, whose sum is σ = 135303254. Its totient is φ = 135303252.

The previous prime is 135303247. The next prime is 135303257. The reversal of 135303253 is 352303531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102779044 + 32524209 = 10138^2 + 5703^2 .

It is a cyclic number.

It is not a de Polignac number, because 135303253 - 2¹⁷ = 135172181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135303257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67651626 + 67651627.

It is an arithmetic number, because the mean of its divisors is an integer number (67651627).

Almost surely, 2^135303253 is an apocalyptic number.

It is an amenable number.

135303253 is a deficient number, since it is larger than the sum of its proper divisors (1).

135303253 is an equidigital number, since it uses as much as digits as its factorization.

135303253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 135303253 is about 11631.9926495850. The cubic root of 135303253 is about 513.3766118100.

Adding to 135303253 its reverse (352303531), we get a palindrome (487606784).

The spelling of 135303253 in words is "one hundred thirty-five million, three hundred three thousand, two hundred fifty-three".