654005012 has 6 divisors (see below), whose sum is σ = 1144508778. Its totient is φ = 327002504.

The previous prime is 654004991. The next prime is 654005021. The reversal of 654005012 is 210500456.

It can be written as a sum of positive squares in only one way, i.e., 541772176 + 112232836 = 23276^2 + 10594^2 .

It is a super-2 number, since 2×654005012² = 855445111442240288, which contains 22 as substring.

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, 81750623 + ... + 81750630.

It is an arithmetic number, because the mean of its divisors is an integer number (190751463).

Almost surely, 2^654005012 is an apocalyptic number.

It is an amenable number.

654005012 is a deficient number, since it is larger than the sum of its proper divisors (490503766).

654005012 is a wasteful number, since it uses less digits than its factorization.

654005012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163501257 (or 163501255 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 654005012 is about 25573.5216972555. The cubic root of 654005012 is about 868.0145909190.

Adding to 654005012 its reverse (210500456), we get a palindrome (864505468).

The spelling of 654005012 in words is "six hundred fifty-four million, five thousand, twelve".