129430183 has 2 divisors, whose sum is σ = 129430184. Its totient is φ = 129430182.

The previous prime is 129430127. The next prime is 129430201. The reversal of 129430183 is 381034921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129430183 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129439183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64715091 + 64715092.

It is an arithmetic number, because the mean of its divisors is an integer number (64715092).

Almost surely, 2^129430183 is an apocalyptic number.

129430183 is a deficient number, since it is larger than the sum of its proper divisors (1).

129430183 is an equidigital number, since it uses as much as digits as its factorization.

129430183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 129430183 is about 11376.7386803073. The cubic root of 129430183 is about 505.8384698461.

The spelling of 129430183 in words is "one hundred twenty-nine million, four hundred thirty thousand, one hundred eighty-three".