155332230 has 64 divisors (see below), whose sum is σ = 401277888. Its totient is φ = 38338560.

The previous prime is 155332223. The next prime is 155332279. The reversal of 155332230 is 32233551.

It is a happy number.

155332230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155332230.

It is a congruent number.

It is an unprimeable 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 31 ways as a sum of consecutive naturals, for example, 28614 + ... + 33606.

It is an arithmetic number, because the mean of its divisors is an integer number (6269967).

Almost surely, 2^155332230 is an apocalyptic number.

155332230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155332230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200638944).

155332230 is an abundant number, since it is smaller than the sum of its proper divisors (245945658).

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

155332230 is a wasteful number, since it uses less digits than its factorization.

155332230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 155332230 is about 12463.2351337845. The cubic root of 155332230 is about 537.5520540897.

Adding to 155332230 its reverse (32233551), we get a palindrome (187565781).

The spelling of 155332230 in words is "one hundred fifty-five million, three hundred thirty-two thousand, two hundred thirty".