136911133 has 4 divisors (see below), whose sum is σ = 137197440. Its totient is φ = 136624828.

The previous prime is 136911127. The next prime is 136911161. The reversal of 136911133 is 331119631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331119631 = 19 ⋅17427349.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136911133 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 (136911163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142435 + ... + 143392.

It is an arithmetic number, because the mean of its divisors is an integer number (34299360).

Almost surely, 2^136911133 is an apocalyptic number.

It is an amenable number.

136911133 is a deficient number, since it is larger than the sum of its proper divisors (286307).

136911133 is an equidigital number, since it uses as much as digits as its factorization.

136911133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286306.

The product of its digits is 1458, while the sum is 28.

The square root of 136911133 is about 11700.9030848050. The cubic root of 136911133 is about 515.4021843438.

The spelling of 136911133 in words is "one hundred thirty-six million, nine hundred eleven thousand, one hundred thirty-three".