654713549 has 12 divisors (see below), whose sum is σ = 774094428. Its totient is φ = 551980800.

The previous prime is 654713513. The next prime is 654713551. The reversal of 654713549 is 945317456.

It can be written as a sum of positive squares in 2 ways, for example, as 120780100 + 533933449 = 10990^2 + 23107^2 .

It is not a de Polignac number, because 654713549 - 2²⁸ = 386278093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654713509) 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 11 ways as a sum of consecutive naturals, for example, 106532 + ... + 112509.

It is an arithmetic number, because the mean of its divisors is an integer number (64507869).

Almost surely, 2^654713549 is an apocalyptic number.

It is an amenable number.

654713549 is a deficient number, since it is larger than the sum of its proper divisors (119380879).

654713549 is a wasteful number, since it uses less digits than its factorization.

654713549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219116 (or 219109 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 654713549 is about 25587.3708887803. The cubic root of 654713549 is about 868.3279414672.

The spelling of 654713549 in words is "six hundred fifty-four million, seven hundred thirteen thousand, five hundred forty-nine".