654147128 has 32 divisors (see below), whose sum is σ = 1283204160. Its totient is φ = 312299520.

The previous prime is 654147121. The next prime is 654147157. The reversal of 654147128 is 821741456.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 654147091 and 654147100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654147121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5801 + ... + 36632.

It is an arithmetic number, because the mean of its divisors is an integer number (40100130).

Almost surely, 2^654147128 is an apocalyptic number.

It is an amenable number.

654147128 is a deficient number, since it is larger than the sum of its proper divisors (629057032).

654147128 is a wasteful number, since it uses less digits than its factorization.

654147128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42527 (or 42523 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 654147128 is about 25576.3001233564. The cubic root of 654147128 is about 868.0774598701.

The spelling of 654147128 in words is "six hundred fifty-four million, one hundred forty-seven thousand, one hundred twenty-eight".