135628029 has 6 divisors (see below), whose sum is σ = 195907166. Its totient is φ = 90418680.

The previous prime is 135628027. The next prime is 135628037. The reversal of 135628029 is 920826531.

135628029 is a `hidden beast` number, since 1 + 3 + 5 + 628 + 0 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 117223929 + 18404100 = 10827^2 + 4290^2 .

It is not a de Polignac number, because 135628029 - 2¹ = 135628027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135627984 and 135628002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135628027) 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 5 ways as a sum of consecutive naturals, for example, 7534882 + ... + 7534899.

Almost surely, 2^135628029 is an apocalyptic number.

It is an amenable number.

135628029 is a deficient number, since it is larger than the sum of its proper divisors (60279137).

135628029 is a wasteful number, since it uses less digits than its factorization.

135628029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069787 (or 15069784 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 135628029 is about 11645.9447448457. The cubic root of 135628029 is about 513.7870458306.

The spelling of 135628029 in words is "one hundred thirty-five million, six hundred twenty-eight thousand, twenty-nine".