83130913 has 2 divisors, whose sum is σ = 83130914. Its totient is φ = 83130912.

The previous prime is 83130899. The next prime is 83130919. The reversal of 83130913 is 31903138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80496784 + 2634129 = 8972^2 + 1623^2 .

It is a cyclic number.

It is not a de Polignac number, because 83130913 - 2¹⁷ = 82999841 is a prime.

It is not a weakly prime, because it can be changed into another prime (83130919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41565456 + 41565457.

It is an arithmetic number, because the mean of its divisors is an integer number (41565457).

Almost surely, 2^83130913 is an apocalyptic number.

It is an amenable number.

83130913 is a deficient number, since it is larger than the sum of its proper divisors (1).

83130913 is an equidigital number, since it uses as much as digits as its factorization.

83130913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 83130913 is about 9117.6155325831. The cubic root of 83130913 is about 436.4362847307.

The spelling of 83130913 in words is "eighty-three million, one hundred thirty thousand, nine hundred thirteen".