33130191 has 8 divisors (see below), whose sum is σ = 44295424. Its totient is φ = 22025880.

The previous prime is 33130183. The next prime is 33130193. The reversal of 33130191 is 19103133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33130191 - 2³ = 33130183 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 (33130193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13945 + ... + 16146.

It is an arithmetic number, because the mean of its divisors is an integer number (5536928).

Almost surely, 2^33130191 is an apocalyptic number.

33130191 is a deficient number, since it is larger than the sum of its proper divisors (11165233).

33130191 is a wasteful number, since it uses less digits than its factorization.

33130191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30461.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 33130191 is about 5755.8831642069. The cubic root of 33130191 is about 321.1746897102.

The spelling of 33130191 in words is "thirty-three million, one hundred thirty thousand, one hundred ninety-one".