83455219 has 2 divisors, whose sum is σ = 83455220. Its totient is φ = 83455218.

The previous prime is 83455199. The next prime is 83455249. The reversal of 83455219 is 91255438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83455219 - 2¹¹ = 83453171 is a prime.

It is a super-2 number, since 2×83455219² = 13929547156675922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83455249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41727609 + 41727610.

It is an arithmetic number, because the mean of its divisors is an integer number (41727610).

Almost surely, 2^83455219 is an apocalyptic number.

83455219 is a deficient number, since it is larger than the sum of its proper divisors (1).

83455219 is an equidigital number, since it uses as much as digits as its factorization.

83455219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 37.

The square root of 83455219 is about 9135.3828053344. The cubic root of 83455219 is about 437.0030825030.

The spelling of 83455219 in words is "eighty-three million, four hundred fifty-five thousand, two hundred nineteen".