136530428 has 24 divisors (see below), whose sum is σ = 251880720. Its totient is φ = 64575360.

The previous prime is 136530413. The next prime is 136530431. The reversal of 136530428 is 824035631.

It is a junction number, because it is equal to n+sod(n) for n = 136530394 and 136530403.

It is a congruent number.

It is an unprimeable number.

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, 91448 + ... + 92928.

It is an arithmetic number, because the mean of its divisors is an integer number (10495030).

Almost surely, 2^136530428 is an apocalyptic number.

It is an amenable number.

136530428 is a deficient number, since it is larger than the sum of its proper divisors (115350292).

136530428 is a wasteful number, since it uses less digits than its factorization.

136530428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717 (or 2715 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 136530428 is about 11684.6235711725. The cubic root of 136530428 is about 514.9240193308.

The spelling of 136530428 in words is "one hundred thirty-six million, five hundred thirty thousand, four hundred twenty-eight".