33130919 has 8 divisors (see below), whose sum is σ = 33810000. Its totient is φ = 32455872.

The previous prime is 33130907. The next prime is 33130921. The reversal of 33130919 is 91903133.

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

It is a cyclic number.

It is not a de Polignac number, because 33130919 - 2⁸ = 33130663 is a prime.

It is a super-2 number, since 2×33130919² = 2195315587569122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33130891 and 33130900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130939) 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, 19787 + ... + 21395.

It is an arithmetic number, because the mean of its divisors is an integer number (4226250).

Almost surely, 2^33130919 is an apocalyptic number.

33130919 is a deficient number, since it is larger than the sum of its proper divisors (679081).

33130919 is a wasteful number, since it uses less digits than its factorization.

33130919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 33130919 is about 5755.9464035031. The cubic root of 33130919 is about 321.1770421814.

The spelling of 33130919 in words is "thirty-three million, one hundred thirty thousand, nine hundred nineteen".