654040612 has 6 divisors (see below), whose sum is σ = 1144571078. Its totient is φ = 327020304.

The previous prime is 654040589. The next prime is 654040613. The reversal of 654040612 is 216040456.

It can be written as a sum of positive squares in only one way, i.e., 649944036 + 4096576 = 25494^2 + 2024^2 .

It is not an unprimeable number, because it can be changed into a prime (654040613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81755073 + ... + 81755080.

Almost surely, 2^654040612 is an apocalyptic number.

It is an amenable number.

654040612 is a deficient number, since it is larger than the sum of its proper divisors (490530466).

654040612 is a wasteful number, since it uses less digits than its factorization.

654040612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163510157 (or 163510155 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 654040612 is about 25574.2177201963. The cubic root of 654040612 is about 868.0303404205.

The spelling of 654040612 in words is "six hundred fifty-four million, forty thousand, six hundred twelve".