83130909 has 16 divisors (see below), whose sum is σ = 116998080. Its totient is φ = 52358400.

The previous prime is 83130899. The next prime is 83130913. The reversal of 83130909 is 90903138.

It is not a de Polignac number, because 83130909 - 2¹³ = 83122717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83130909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83130919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21039 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (7312380).

Almost surely, 2^83130909 is an apocalyptic number.

It is an amenable number.

83130909 is a deficient number, since it is larger than the sum of its proper divisors (33867171).

83130909 is a wasteful number, since it uses less digits than its factorization.

83130909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 83130909 is about 9117.6153132275. The cubic root of 83130909 is about 436.4362777308.

The spelling of 83130909 in words is "eighty-three million, one hundred thirty thousand, nine hundred nine".