155528140 has 24 divisors (see below), whose sum is σ = 326844000. Its totient is φ = 62166528.

The previous prime is 155528117. The next prime is 155528141. The reversal of 155528140 is 41825551.

It is not an unprimeable number, because it can be changed into a prime (155528141) 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, 50361 + ... + 53359.

It is an arithmetic number, because the mean of its divisors is an integer number (13618500).

Almost surely, 2^155528140 is an apocalyptic number.

155528140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155528140 is an abundant number, since it is smaller than the sum of its proper divisors (171315860).

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

155528140 is a wasteful number, since it uses less digits than its factorization.

155528140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601 (or 5599 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 155528140 is about 12471.0921735027. The cubic root of 155528140 is about 537.7779517880. Note that the first 3 decimals are identical.

The spelling of 155528140 in words is "one hundred fifty-five million, five hundred twenty-eight thousand, one hundred forty".