133030091 has 4 divisors (see below), whose sum is σ = 138814032. Its totient is φ = 127246152.

The previous prime is 133030063. The next prime is 133030097. The reversal of 133030091 is 190030331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190030331 = 9133 ⋅20807.

It is a cyclic number.

It is not a de Polignac number, because 133030091 - 2¹⁴ = 133013707 is a prime.

It is a super-2 number, since 2×133030091² = 35394010222936562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133030097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891936 + ... + 2891981.

It is an arithmetic number, because the mean of its divisors is an integer number (34703508).

Almost surely, 2^133030091 is an apocalyptic number.

133030091 is a deficient number, since it is larger than the sum of its proper divisors (5783941).

133030091 is an equidigital number, since it uses as much as digits as its factorization.

133030091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783940.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 133030091 is about 11533.8671311924. The cubic root of 133030091 is about 510.4853651791.

The spelling of 133030091 in words is "one hundred thirty-three million, thirty thousand, ninety-one".