136685711 has 8 divisors (see below), whose sum is σ = 144584160. Its totient is φ = 128950272.

The previous prime is 136685701. The next prime is 136685741. The reversal of 136685711 is 117586631.

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

It is a cyclic number.

It is not a de Polignac number, because 136685711 - 2²² = 132491407 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 (136685701) 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, 39026 + ... + 42383.

It is an arithmetic number, because the mean of its divisors is an integer number (18073020).

Almost surely, 2^136685711 is an apocalyptic number.

136685711 is a deficient number, since it is larger than the sum of its proper divisors (7898449).

136685711 is an equidigital number, since it uses as much as digits as its factorization.

136685711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81505.

The product of its digits is 30240, while the sum is 38.

The square root of 136685711 is about 11691.2664412372. The cubic root of 136685711 is about 515.1191617935.

The spelling of 136685711 in words is "one hundred thirty-six million, six hundred eighty-five thousand, seven hundred eleven".