155608 has 16 divisors (see below), whose sum is σ = 298080. Its totient is φ = 76128.

The previous prime is 155599. The next prime is 155609. The reversal of 155608 is 806551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155609) by changing a digit.

155608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241 + ... + 607.

It is an arithmetic number, because the mean of its divisors is an integer number (18630).

2¹⁵⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

155608 is a deficient number, since it is larger than the sum of its proper divisors (142472).

155608 is a wasteful number, since it uses less digits than its factorization.

155608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 155608 is about 394.4717987385. The cubic root of 155608 is about 53.7869981433.

The spelling of 155608 in words is "one hundred fifty-five thousand, six hundred eight".