135425211 has 8 divisors (see below), whose sum is σ = 181071360. Its totient is φ = 90031272.

The previous prime is 135425209. The next prime is 135425221. The reversal of 135425211 is 112524531.

It is a happy number.

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

It is not a de Polignac number, because 135425211 - 2¹ = 135425209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135425221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61795 + ... + 63948.

It is an arithmetic number, because the mean of its divisors is an integer number (22633920).

Almost surely, 2^135425211 is an apocalyptic number.

135425211 is a deficient number, since it is larger than the sum of its proper divisors (45646149).

135425211 is a wasteful number, since it uses less digits than its factorization.

135425211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126105.

The product of its digits is 1200, while the sum is 24.

The square root of 135425211 is about 11637.2338208012. The cubic root of 135425211 is about 513.5308125435.

Adding to 135425211 its reverse (112524531), we get a palindrome (247949742).

It can be divided in two parts, 1354 and 25211, that added together give a triangular number (26565 = T₂₃₀).

The spelling of 135425211 in words is "one hundred thirty-five million, four hundred twenty-five thousand, two hundred eleven".