135129355 has 8 divisors (see below), whose sum is σ = 163590912. Its totient is φ = 107146368.

The previous prime is 135129353. The next prime is 135129359. The reversal of 135129355 is 553921531.

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

It is a cyclic number.

It is not a de Polignac number, because 135129355 - 2¹ = 135129353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135129355.

It is not an unprimeable number, because it can be changed into a prime (135129353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119019 + ... + 120148.

It is an arithmetic number, because the mean of its divisors is an integer number (20448864).

Almost surely, 2^135129355 is an apocalyptic number.

135129355 is a deficient number, since it is larger than the sum of its proper divisors (28461557).

135129355 is a wasteful number, since it uses less digits than its factorization.

135129355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239285.

The product of its digits is 20250, while the sum is 34.

The square root of 135129355 is about 11624.5152587108. The cubic root of 135129355 is about 513.1565790607.

The spelling of 135129355 in words is "one hundred thirty-five million, one hundred twenty-nine thousand, three hundred fifty-five".