654000212 has 6 divisors (see below), whose sum is σ = 1144500378. Its totient is φ = 327000104.

The previous prime is 654000181. The next prime is 654000227. The reversal of 654000212 is 212000456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 601524676 + 52475536 = 24526^2 + 7244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81750023 + ... + 81750030.

It is an arithmetic number, because the mean of its divisors is an integer number (190750063).

Almost surely, 2^654000212 is an apocalyptic number.

It is an amenable number.

654000212 is a deficient number, since it is larger than the sum of its proper divisors (490500166).

654000212 is a wasteful number, since it uses less digits than its factorization.

654000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163500057 (or 163500055 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 654000212 is about 25573.4278500165. The cubic root of 654000212 is about 868.0124673470.

Adding to 654000212 its reverse (212000456), we get a palindrome (866000668).

The spelling of 654000212 in words is "six hundred fifty-four million, two hundred twelve", and thus it is an aban number.