655156 has 6 divisors (see below), whose sum is σ = 1146530. Its totient is φ = 327576.

The previous prime is 655121. The next prime is 655157. The reversal of 655156 is 651556.

It can be written as a sum of positive squares in only one way, i.e., 443556 + 211600 = 666^2 + 460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81891 + ... + 81898.

2⁶⁵⁵¹⁵⁶ is an apocalyptic number.

It is an amenable number.

655156 is a deficient number, since it is larger than the sum of its proper divisors (491374).

655156 is a wasteful number, since it uses less digits than its factorization.

655156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163793 (or 163791 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 655156 is about 809.4170741960. The cubic root of 655156 is about 86.8523500810.

Subtracting from 655156 its reverse (651556), we obtain a square (3600 = 60²).

The spelling of 655156 in words is "six hundred fifty-five thousand, one hundred fifty-six".