135120422 has 4 divisors (see below), whose sum is σ = 202680636. Its totient is φ = 67560210.

The previous prime is 135120409. The next prime is 135120451. The reversal of 135120422 is 224021531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224021531 = 31 ⋅7226501.

It is a junction number, because it is equal to n+sod(n) for n = 135120394 and 135120403.

It is a congruent 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 as a sum of consecutive naturals, namely, 33780104 + ... + 33780107.

It is an arithmetic number, because the mean of its divisors is an integer number (50670159).

Almost surely, 2^135120422 is an apocalyptic number.

135120422 is a deficient number, since it is larger than the sum of its proper divisors (67560214).

135120422 is an equidigital number, since it uses as much as digits as its factorization.

135120422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67560213.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 135120422 is about 11624.1310212850. The cubic root of 135120422 is about 513.1452710595.

Adding to 135120422 its reverse (224021531), we get a palindrome (359141953).

The spelling of 135120422 in words is "one hundred thirty-five million, one hundred twenty thousand, four hundred twenty-two".