129534371 has 2 divisors, whose sum is σ = 129534372. Its totient is φ = 129534370.

The previous prime is 129534359. The next prime is 129534389. The reversal of 129534371 is 173435921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129534371 - 2¹⁰ = 129533347 is a prime.

It is not a weakly prime, because it can be changed into another prime (129534331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64767185 + 64767186.

It is an arithmetic number, because the mean of its divisors is an integer number (64767186).

Almost surely, 2^129534371 is an apocalyptic number.

129534371 is a deficient number, since it is larger than the sum of its proper divisors (1).

129534371 is an equidigital number, since it uses as much as digits as its factorization.

129534371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 129534371 is about 11381.3167515890. The cubic root of 129534371 is about 505.9741624702.

The spelling of 129534371 in words is "one hundred twenty-nine million, five hundred thirty-four thousand, three hundred seventy-one".