155300032 has 56 divisors (see below), whose sum is σ = 333353664. Its totient is φ = 71503872.

The previous prime is 155300021. The next prime is 155300051. The reversal of 155300032 is 230003551.

It is a junction number, because it is equal to n+sod(n) for n = 155299982 and 155300009.

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, 49618 + ... + 52654.

It is an arithmetic number, because the mean of its divisors is an integer number (5952744).

Almost surely, 2^155300032 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 155300032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166676832).

155300032 is an abundant number, since it is smaller than the sum of its proper divisors (178053632).

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

155300032 is a wasteful number, since it uses less digits than its factorization.

155300032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113 (or 3103 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 155300032 is about 12461.9433476485. The cubic root of 155300032 is about 537.5149094116.

Adding to 155300032 its reverse (230003551), we get a palindrome (385303583).

The spelling of 155300032 in words is "one hundred fifty-five million, three hundred thousand, thirty-two".