654538605 has 32 divisors (see below), whose sum is σ = 1219463424. Its totient is φ = 293569536.

The previous prime is 654538597. The next prime is 654538609. The reversal of 654538605 is 506835456.

It is a happy number.

It is not a de Polignac number, because 654538605 - 2³ = 654538597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654538609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53244 + ... + 64373.

It is an arithmetic number, because the mean of its divisors is an integer number (38108232).

Almost surely, 2^654538605 is an apocalyptic number.

It is an amenable number.

654538605 is a deficient number, since it is larger than the sum of its proper divisors (564924819).

654538605 is a wasteful number, since it uses less digits than its factorization.

654538605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117685.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 654538605 is about 25583.9520989233. The cubic root of 654538605 is about 868.2505934952.

It can be divided in two parts, 6545 and 38605, that added together give a triangular number (45150 = T₃₀₀).

The spelling of 654538605 in words is "six hundred fifty-four million, five hundred thirty-eight thousand, six hundred five".