133006091 has 4 divisors (see below), whose sum is σ = 136250184. Its totient is φ = 129762000.

The previous prime is 133006087. The next prime is 133006117. The reversal of 133006091 is 190600331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190600331 = 911 ⋅209221.

It is a cyclic number.

It is not a de Polignac number, because 133006091 - 2² = 133006087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133006021) 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, 1621985 + ... + 1622066.

It is an arithmetic number, because the mean of its divisors is an integer number (34062546).

Almost surely, 2^133006091 is an apocalyptic number.

133006091 is a deficient number, since it is larger than the sum of its proper divisors (3244093).

133006091 is an equidigital number, since it uses as much as digits as its factorization.

133006091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244092.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 133006091 is about 11532.8266699886. The cubic root of 133006091 is about 510.4546643917.

It can be divided in two parts, 13300 and 6091, that added together give a palindrome (19391).

The spelling of 133006091 in words is "one hundred thirty-three million, six thousand, ninety-one".