135422129 has 4 divisors (see below), whose sum is σ = 135461376. Its totient is φ = 135382884.

The previous prime is 135422123. The next prime is 135422143. The reversal of 135422129 is 921224531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135422129 - 2¹² = 135418033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135422123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13889 + ... + 21534.

It is an arithmetic number, because the mean of its divisors is an integer number (33865344).

Almost surely, 2^135422129 is an apocalyptic number.

It is an amenable number.

135422129 is a deficient number, since it is larger than the sum of its proper divisors (39247).

135422129 is an equidigital number, since it uses as much as digits as its factorization.

135422129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39246.

The product of its digits is 4320, while the sum is 29.

The square root of 135422129 is about 11637.1014002629. The cubic root of 135422129 is about 513.5269168780.

The spelling of 135422129 in words is "one hundred thirty-five million, four hundred twenty-two thousand, one hundred twenty-nine".