135291011 has 4 divisors (see below), whose sum is σ = 135327024. Its totient is φ = 135255000.

The previous prime is 135290993. The next prime is 135291019. The reversal of 135291011 is 110192531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135291011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135291019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11615 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (33831756).

Almost surely, 2^135291011 is an apocalyptic number.

135291011 is a deficient number, since it is larger than the sum of its proper divisors (36013).

135291011 is an equidigital number, since it uses as much as digits as its factorization.

135291011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36012.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 135291011 is about 11631.4664165788. The cubic root of 135291011 is about 513.3611282058.

The spelling of 135291011 in words is "one hundred thirty-five million, two hundred ninety-one thousand, eleven".