135311428 has 12 divisors (see below), whose sum is σ = 270622912. Its totient is φ = 57990600.

The previous prime is 135311399. The next prime is 135311447. The reversal of 135311428 is 824113531.

It is a happy number.

135311428 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4832551 = 135311428 / (1 + 3 + 5 + 3 + 1 + 1 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 135311396 and 135311405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416248 + ... + 2416303.

Almost surely, 2^135311428 is an apocalyptic number.

It is an amenable number.

135311428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135311428 is a wasteful number, since it uses less digits than its factorization.

135311428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832562 (or 4832560 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 135311428 is about 11632.3440458061. The cubic root of 135311428 is about 513.3869509782.

Adding to 135311428 its reverse (824113531), we get a palindrome (959424959).

The spelling of 135311428 in words is "one hundred thirty-five million, three hundred eleven thousand, four hundred twenty-eight".