135304231 has 2 divisors, whose sum is σ = 135304232. Its totient is φ = 135304230.

The previous prime is 135304219. The next prime is 135304271. The reversal of 135304231 is 132403531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135304231 - 2¹⁹ = 134779943 is a prime.

It is a super-2 number, since 2×135304231² = 36614469853002722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135304271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67652115 + 67652116.

It is an arithmetic number, because the mean of its divisors is an integer number (67652116).

Almost surely, 2^135304231 is an apocalyptic number.

135304231 is a deficient number, since it is larger than the sum of its proper divisors (1).

135304231 is an equidigital number, since it uses as much as digits as its factorization.

135304231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 135304231 is about 11632.0346887378. The cubic root of 135304231 is about 513.3778487379.

Adding to 135304231 its reverse (132403531), we get a palindrome (267707762).

The spelling of 135304231 in words is "one hundred thirty-five million, three hundred four thousand, two hundred thirty-one".