135571011 has 4 divisors (see below), whose sum is σ = 180761352. Its totient is φ = 90380672.

The previous prime is 135571003. The next prime is 135571013. The reversal of 135571011 is 110175531.

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

It is a cyclic number.

It is not a de Polignac number, because 135571011 - 2³ = 135571003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135571013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22595166 + ... + 22595171.

It is an arithmetic number, because the mean of its divisors is an integer number (45190338).

Almost surely, 2^135571011 is an apocalyptic number.

135571011 is a deficient number, since it is larger than the sum of its proper divisors (45190341).

135571011 is an equidigital number, since it uses as much as digits as its factorization.

135571011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45190340.

The product of its (nonzero) digits is 525, while the sum is 24.

The square root of 135571011 is about 11643.4965109283. The cubic root of 135571011 is about 513.7150370770.

The spelling of 135571011 in words is "one hundred thirty-five million, five hundred seventy-one thousand, eleven".