129541393 has 2 divisors, whose sum is σ = 129541394. Its totient is φ = 129541392.

The previous prime is 129541387. The next prime is 129541421. The reversal of 129541393 is 393145921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127961344 + 1580049 = 11312^2 + 1257^2 .

It is a cyclic number.

It is not a de Polignac number, because 129541393 - 2⁵ = 129541361 is a prime.

It is not a weakly prime, because it can be changed into another prime (129541303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64770696 + 64770697.

It is an arithmetic number, because the mean of its divisors is an integer number (64770697).

Almost surely, 2^129541393 is an apocalyptic number.

It is an amenable number.

129541393 is a deficient number, since it is larger than the sum of its proper divisors (1).

129541393 is an equidigital number, since it uses as much as digits as its factorization.

129541393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 37.

The square root of 129541393 is about 11381.6252354398. The cubic root of 129541393 is about 505.9833051822.

The spelling of 129541393 in words is "one hundred twenty-nine million, five hundred forty-one thousand, three hundred ninety-three".