83133819 has 12 divisors (see below), whose sum is σ = 121029376. Its totient is φ = 54985392.

The previous prime is 83133811. The next prime is 83133851. The reversal of 83133819 is 91833138.

It is not a de Polignac number, because 83133819 - 2³ = 83133811 is a prime.

It is a super-2 number, since 2×83133819² = 13822463723049522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83133811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35224 + ... + 37509.

Almost surely, 2^83133819 is an apocalyptic number.

83133819 is a deficient number, since it is larger than the sum of its proper divisors (37895557).

83133819 is a wasteful number, since it uses less digits than its factorization.

83133819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72866 (or 72863 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 83133819 is about 9117.7748930317. The cubic root of 83133819 is about 436.4413701597.

The spelling of 83133819 in words is "eighty-three million, one hundred thirty-three thousand, eight hundred nineteen".