155605104 has 40 divisors (see below), whose sum is σ = 446645520. Its totient is φ = 51868224.

The previous prime is 155605103. The next prime is 155605111. The reversal of 155605104 is 401506551.

It is a happy number.

155605104 is a `hidden beast` number, since 1 + 55 + 605 + 1 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155605103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 179667 + ... + 180530.

It is an arithmetic number, because the mean of its divisors is an integer number (11166138).

Almost surely, 2^155605104 is an apocalyptic number.

It is an amenable number.

155605104 is an abundant number, since it is smaller than the sum of its proper divisors (291040416).

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

155605104 is a wasteful number, since it uses less digits than its factorization.

155605104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360214 (or 360202 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155605104 is about 12474.1774879148. The cubic root of 155605104 is about 537.8666446700.

The spelling of 155605104 in words is "one hundred fifty-five million, six hundred five thousand, one hundred four".