133839311 has 6 divisors (see below), whose sum is σ = 134673600. Its totient is φ = 133010156.

The previous prime is 133839301. The next prime is 133839313. The reversal of 133839311 is 113938331.

133839311 = T₄₆₆ + T₄₆₇ + ... + T₉₆₆.

It is a de Polignac number, because none of the positive numbers 2^k-133839311 is a prime.

It is a super-2 number, since 2×133839311² = 35825922337909442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133839313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25490 + ... + 30288.

It is an arithmetic number, because the mean of its divisors is an integer number (22445600).

Almost surely, 2^133839311 is an apocalyptic number.

133839311 is a deficient number, since it is larger than the sum of its proper divisors (834289).

133839311 is an frugal number, since it uses more digits than its factorization.

133839311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133 (or 4966 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 133839311 is about 11568.8941130948. The cubic root of 133839311 is about 511.5183649728.

The spelling of 133839311 in words is "one hundred thirty-three million, eight hundred thirty-nine thousand, three hundred eleven".