155841320 has 32 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 62053440.

The previous prime is 155841311. The next prime is 155841347. The reversal of 155841320 is 23148551.

It is an unprimeable number.

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, 185 + ... + 17655.

It is an arithmetic number, because the mean of its divisors is an integer number (11007360).

Almost surely, 2^155841320 is an apocalyptic number.

155841320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155841320 is an abundant number, since it is smaller than the sum of its proper divisors (196394200).

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

155841320 is a wasteful number, since it uses less digits than its factorization.

155841320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17705 (or 17701 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 155841320 is about 12483.6420967601. The cubic root of 155841320 is about 538.1386761727.

Adding to 155841320 its reverse (23148551), we get a palindrome (178989871).

The spelling of 155841320 in words is "one hundred fifty-five million, eight hundred forty-one thousand, three hundred twenty".