654542 has 12 divisors (see below), whose sum is σ = 1142280. Its totient is φ = 280476.

The previous prime is 654541. The next prime is 654553. The reversal of 654542 is 245456.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654542.

It is not an unprimeable number, because it can be changed into a prime (654541) 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 5 ways as a sum of consecutive naturals, for example, 3242 + ... + 3437.

It is an arithmetic number, because the mean of its divisors is an integer number (95190).

2⁶⁵⁴⁵⁴² is an apocalyptic number.

654542 is a deficient number, since it is larger than the sum of its proper divisors (487738).

654542 is a wasteful number, since it uses less digits than its factorization.

654542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695 (or 6688 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 654542 is about 809.0376999868. The cubic root of 654542 is about 86.8252094657.

Adding to 654542 its reverse (245456), we get a palindrome (899998).

It can be divided in two parts, 65454 and 2, that added together give a palindrome (65456).

The spelling of 654542 in words is "six hundred fifty-four thousand, five hundred forty-two".