654013812 has 12 divisors (see below), whose sum is σ = 1526032256. Its totient is φ = 218004600.

The previous prime is 654013807. The next prime is 654013861. The reversal of 654013812 is 218310456.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 654013812.

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 3 ways as a sum of consecutive naturals, for example, 27250564 + ... + 27250587.

Almost surely, 2^654013812 is an apocalyptic number.

It is an amenable number.

654013812 is an abundant number, since it is smaller than the sum of its proper divisors (872018444).

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

654013812 is a wasteful number, since it uses less digits than its factorization.

654013812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54501158 (or 54501156 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 654013812 is about 25573.6937496326. The cubic root of 654013812 is about 868.0184841074.

It can be divided in two parts, 6540138 and 12, that multiplied together give a triangular number (78481656 = T₁₂₅₂₈).

The spelling of 654013812 in words is "six hundred fifty-four million, thirteen thousand, eight hundred twelve".