129827119 has 2 divisors, whose sum is σ = 129827120. Its totient is φ = 129827118.

The previous prime is 129827063. The next prime is 129827123. The reversal of 129827119 is 911728921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129827119 - 2¹¹ = 129825071 is a prime.

It is a super-2 number, since 2×129827119² = 33710161655680322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129827129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64913559 + 64913560.

It is an arithmetic number, because the mean of its divisors is an integer number (64913560).

Almost surely, 2^129827119 is an apocalyptic number.

129827119 is a deficient number, since it is larger than the sum of its proper divisors (1).

129827119 is an equidigital number, since it uses as much as digits as its factorization.

129827119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 40.

The square root of 129827119 is about 11394.1703954259. The cubic root of 129827119 is about 506.3550433046.

The spelling of 129827119 in words is "one hundred twenty-nine million, eight hundred twenty-seven thousand, one hundred nineteen".