135028449252 has 90 divisors (see below), whose sum is σ = 374976899682. Its totient is φ = 42361837056.

The previous prime is 135028449233. The next prime is 135028449301. The reversal of 135028449252 is 252944820531.

135028449252 is a `hidden beast` number, since 1 + 3 + 502 + 8 + 4 + 4 + 92 + 52 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 51544437156 + 83484012096 = 227034^2 + 288936^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135028449198 and 135028449207.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 627393 + ... + 814664.

Almost surely, 2^135028449252 is an apocalyptic number.

135028449252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135028449252 is an abundant number, since it is smaller than the sum of its proper divisors (239948450430).

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

135028449252 is a wasteful number, since it uses less digits than its factorization.

135028449252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442107 (or 1442079 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 135028449252 in words is "one hundred thirty-five billion, twenty-eight million, four hundred forty-nine thousand, two hundred fifty-two".