385055187 has 16 divisors (see below), whose sum is σ = 563846400. Its totient is φ = 231797600.

The previous prime is 385055183. The next prime is 385055201. The reversal of 385055187 is 781550583.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 385055187 - 2² = 385055183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385055183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34239 + ... + 44072.

It is an arithmetic number, because the mean of its divisors is an integer number (35240400).

Almost surely, 2^385055187 is an apocalyptic number.

385055187 is a deficient number, since it is larger than the sum of its proper divisors (178791213).

385055187 is a wasteful number, since it uses less digits than its factorization.

385055187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78474.

The product of its (nonzero) digits is 168000, while the sum is 42.

The square root of 385055187 is about 19622.8231149343. The cubic root of 385055187 is about 727.5133928404.

The spelling of 385055187 in words is "three hundred eighty-five million, fifty-five thousand, one hundred eighty-seven".