129355 has 8 divisors (see below), whose sum is σ = 159264. Its totient is φ = 100800.

The previous prime is 129347. The next prime is 129361. The reversal of 129355 is 553921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129355 - 2³ = 129347 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111 + ... + 520.

It is an arithmetic number, because the mean of its divisors is an integer number (19908).

2¹²⁹³⁵⁵ is an apocalyptic number.

129355 is a deficient number, since it is larger than the sum of its proper divisors (29909).

129355 is an equidigital number, since it uses as much as digits as its factorization.

129355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 1350, while the sum is 25.

The square root of 129355 is about 359.6595612520. The cubic root of 129355 is about 50.5740507586.

It can be divided in two parts, 129 and 355, that added together give a palindrome (484).

The spelling of 129355 in words is "one hundred twenty-nine thousand, three hundred fifty-five".