135566111 has 8 divisors (see below), whose sum is σ = 137226960. Its totient is φ = 133912768.

The previous prime is 135566089. The next prime is 135566149. The reversal of 135566111 is 111665531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135566111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135566191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39995 + ... + 43251.

It is an arithmetic number, because the mean of its divisors is an integer number (17153370).

Almost surely, 2^135566111 is an apocalyptic number.

135566111 is a deficient number, since it is larger than the sum of its proper divisors (1660849).

135566111 is a wasteful number, since it uses less digits than its factorization.

135566111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753.

The product of its digits is 2700, while the sum is 29.

The square root of 135566111 is about 11643.2860911342. The cubic root of 135566111 is about 513.7088478630.

The spelling of 135566111 in words is "one hundred thirty-five million, five hundred sixty-six thousand, one hundred eleven".