654136542 has 24 divisors (see below), whose sum is σ = 1455602616. Its totient is φ = 212152176.

The previous prime is 654136531. The next prime is 654136573. The reversal of 654136542 is 245631456.

It is a junction number, because it is equal to n+sod(n) for n = 654136497 and 654136506.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 490428 + ... + 491759.

It is an arithmetic number, because the mean of its divisors is an integer number (60650109).

Almost surely, 2^654136542 is an apocalyptic number.

654136542 is an abundant number, since it is smaller than the sum of its proper divisors (801466074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654136542 is a wasteful number, since it uses less digits than its factorization.

654136542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982232 (or 982229 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 654136542 is about 25576.0931731177. The cubic root of 654136542 is about 868.0727771735.

Adding to 654136542 its reverse (245631456), we get a palindrome (899767998).

The spelling of 654136542 in words is "six hundred fifty-four million, one hundred thirty-six thousand, five hundred forty-two".