655012 has 6 divisors (see below), whose sum is σ = 1146278. Its totient is φ = 327504.

The previous prime is 655003. The next prime is 655013. The reversal of 655012 is 210556.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 430336 + 224676 = 656^2 + 474^2 .

It is not an unprimeable number, because it can be changed into a prime (655013) by changing a digit.

655012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81873 + ... + 81880.

2⁶⁵⁵⁰¹² is an apocalyptic number.

It is an amenable number.

655012 is a deficient number, since it is larger than the sum of its proper divisors (491266).

655012 is a wasteful number, since it uses less digits than its factorization.

655012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163757 (or 163755 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 655012 is about 809.3281164027. The cubic root of 655012 is about 86.8459863779.

Adding to 655012 its reverse (210556), we get a palindrome (865568).

The spelling of 655012 in words is "six hundred fifty-five thousand, twelve".