83188069 has 2 divisors, whose sum is σ = 83188070. Its totient is φ = 83188068.

The previous prime is 83188051. The next prime is 83188081. The reversal of 83188069 is 96088138.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 39125025 = 6638^2 + 6255^2 .

It is a cyclic number.

It is not a de Polignac number, because 83188069 - 2⁹ = 83187557 is a prime.

It is a super-2 number, since 2×83188069² = 13840509647897522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83188019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41594034 + 41594035.

It is an arithmetic number, because the mean of its divisors is an integer number (41594035).

Almost surely, 2^83188069 is an apocalyptic number.

It is an amenable number.

83188069 is a deficient number, since it is larger than the sum of its proper divisors (1).

83188069 is an equidigital number, since it uses as much as digits as its factorization.

83188069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 83188069 is about 9120.7493661431. The cubic root of 83188069 is about 436.5362845851.

The spelling of 83188069 in words is "eighty-three million, one hundred eighty-eight thousand, sixty-nine".