134236811 has 4 divisors (see below), whose sum is σ = 142133112. Its totient is φ = 126340512.

The previous prime is 134236807. The next prime is 134236819. The reversal of 134236811 is 118632431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118632431 = 3691 ⋅32141.

It is a cyclic number.

It is not a de Polignac number, because 134236811 - 2² = 134236807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134236819) 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, 3948125 + ... + 3948158.

It is an arithmetic number, because the mean of its divisors is an integer number (35533278).

Almost surely, 2^134236811 is an apocalyptic number.

134236811 is a deficient number, since it is larger than the sum of its proper divisors (7896301).

134236811 is an equidigital number, since it uses as much as digits as its factorization.

134236811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896300.

The product of its digits is 3456, while the sum is 29.

The square root of 134236811 is about 11586.0610649176. The cubic root of 134236811 is about 512.0242641394.

The spelling of 134236811 in words is "one hundred thirty-four million, two hundred thirty-six thousand, eight hundred eleven".