135262291 has 2 divisors, whose sum is σ = 135262292. Its totient is φ = 135262290.

The previous prime is 135262277. The next prime is 135262301. The reversal of 135262291 is 192262531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135262291 - 2¹⁷ = 135131219 is a prime.

It is not a weakly prime, because it can be changed into another prime (135262891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67631145 + 67631146.

It is an arithmetic number, because the mean of its divisors is an integer number (67631146).

Almost surely, 2^135262291 is an apocalyptic number.

135262291 is a deficient number, since it is larger than the sum of its proper divisors (1).

135262291 is an equidigital number, since it uses as much as digits as its factorization.

135262291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 135262291 is about 11630.2317689718. The cubic root of 135262291 is about 513.3247996651.

The spelling of 135262291 in words is "one hundred thirty-five million, two hundred sixty-two thousand, two hundred ninety-one".