135422425 has 12 divisors (see below), whose sum is σ = 177802236. Its totient is φ = 101964800.

The previous prime is 135422423. The next prime is 135422447. The reversal of 135422425 is 524224531.

It can be written as a sum of positive squares in 6 ways, for example, as 9803161 + 125619264 = 3131^2 + 11208^2 .

It is not a de Polignac number, because 135422425 - 2¹ = 135422423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135422393 and 135422402.

It is not an unprimeable number, because it can be changed into a prime (135422423) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 158896 + ... + 159745.

It is an arithmetic number, because the mean of its divisors is an integer number (14816853).

Almost surely, 2^135422425 is an apocalyptic number.

It is an amenable number.

135422425 is a deficient number, since it is larger than the sum of its proper divisors (42379811).

135422425 is a wasteful number, since it uses less digits than its factorization.

135422425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318668 (or 318663 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 135422425 is about 11637.1141181996. The cubic root of 135422425 is about 513.5272910262.

Adding to 135422425 its reverse (524224531), we get a palindrome (659646956).

The spelling of 135422425 in words is "one hundred thirty-five million, four hundred twenty-two thousand, four hundred twenty-five".