655158 has 32 divisors (see below), whose sum is σ = 1578240. Its totient is φ = 177120.

The previous prime is 655157. The next prime is 655181. The reversal of 655158 is 851556.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655158.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (49320).

2⁶⁵⁵¹⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (789120).

655158 is an abundant number, since it is smaller than the sum of its proper divisors (923082).

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

655158 is a wasteful number, since it uses less digits than its factorization.

655158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852.

The product of its digits is 6000, while the sum is 30.

The square root of 655158 is about 809.4183096521. The cubic root of 655158 is about 86.8524384592.

The spelling of 655158 in words is "six hundred fifty-five thousand, one hundred fifty-eight".