135159428 has 6 divisors (see below), whose sum is σ = 236529006. Its totient is φ = 67579712.

The previous prime is 135159419. The next prime is 135159433. The reversal of 135159428 is 824951531.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 96196864 + 38962564 = 9808^2 + 6242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135159391 and 135159400.

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, 16894925 + ... + 16894932.

It is an arithmetic number, because the mean of its divisors is an integer number (39421501).

Almost surely, 2^135159428 is an apocalyptic number.

It is an amenable number.

135159428 is a deficient number, since it is larger than the sum of its proper divisors (101369578).

135159428 is a wasteful number, since it uses less digits than its factorization.

135159428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33789861 (or 33789859 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 135159428 is about 11625.8087030537. The cubic root of 135159428 is about 513.1946438546.

The spelling of 135159428 in words is "one hundred thirty-five million, one hundred fifty-nine thousand, four hundred twenty-eight".