155112032 has 48 divisors (see below), whose sum is σ = 314399232. Its totient is φ = 75292800.

The previous prime is 155112031. The next prime is 155112037. The reversal of 155112032 is 230211551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 155111995 and 155112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155112031) 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 in 7 ways as a sum of consecutive naturals, for example, 226763 + ... + 227445.

It is an arithmetic number, because the mean of its divisors is an integer number (6549984).

Almost surely, 2^155112032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155112032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157199616).

155112032 is an abundant number, since it is smaller than the sum of its proper divisors (159287200).

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

155112032 is a wasteful number, since it uses less digits than its factorization.

155112032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 155112032 is about 12454.3980986638. The cubic root of 155112032 is about 537.2979238215.

Adding to 155112032 its reverse (230211551), we get a palindrome (385323583).

The spelling of 155112032 in words is "one hundred fifty-five million, one hundred twelve thousand, thirty-two".