155305032 has 32 divisors (see below), whose sum is σ = 388852800. Its totient is φ = 51689664.

The previous prime is 155305027. The next prime is 155305049. The reversal of 155305032 is 230503551.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 155304993 and 155305011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12453 + ... + 21579.

It is an arithmetic number, because the mean of its divisors is an integer number (12151650).

Almost surely, 2^155305032 is an apocalyptic number.

155305032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155305032 is an abundant number, since it is smaller than the sum of its proper divisors (233547768).

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

155305032 is a wasteful number, since it uses less digits than its factorization.

155305032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9845 (or 9841 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 155305032 is about 12462.1439567997. The cubic root of 155305032 is about 537.5206779137.

Adding to 155305032 its reverse (230503551), we get a palindrome (385808583).

The spelling of 155305032 in words is "one hundred fifty-five million, three hundred five thousand, thirty-two".