134511211 has 4 divisors (see below), whose sum is σ = 136131912. Its totient is φ = 132890512.

The previous prime is 134511149. The next prime is 134511229. The reversal of 134511211 is 112115431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112115431 = 491 ⋅228341.

It is a cyclic number.

It is not a de Polignac number, because 134511211 - 2⁹ = 134510699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134511271) 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, 810226 + ... + 810391.

It is an arithmetic number, because the mean of its divisors is an integer number (34032978).

Almost surely, 2^134511211 is an apocalyptic number.

134511211 is a deficient number, since it is larger than the sum of its proper divisors (1620701).

134511211 is an equidigital number, since it uses as much as digits as its factorization.

134511211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620700.

The product of its digits is 120, while the sum is 19.

The square root of 134511211 is about 11597.8968352025. The cubic root of 134511211 is about 512.3729112595.

Adding to 134511211 its reverse (112115431), we get a palindrome (246626642).

The spelling of 134511211 in words is "one hundred thirty-four million, five hundred eleven thousand, two hundred eleven".