155300320 has 48 divisors (see below), whose sum is σ = 419313888. Its totient is φ = 53245440.

The previous prime is 155300317. The next prime is 155300371. The reversal of 155300320 is 23003551.

155300320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 68211 + ... + 70450.

It is an arithmetic number, because the mean of its divisors is an integer number (8735706).

Almost surely, 2^155300320 is an apocalyptic number.

155300320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155300320 is an abundant number, since it is smaller than the sum of its proper divisors (264013568).

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

155300320 is a wasteful number, since it uses less digits than its factorization.

155300320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138683 (or 138675 counting only the distinct ones).

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

The square root of 155300320 is about 12461.9549028232. The cubic root of 155300320 is about 537.5152416806.

Adding to 155300320 its reverse (23003551), we get a palindrome (178303871).

The spelling of 155300320 in words is "one hundred fifty-five million, three hundred thousand, three hundred twenty".