385142187 has 8 divisors (see below), whose sum is σ = 513679504. Its totient is φ = 256683168.

The previous prime is 385142183. The next prime is 385142237. The reversal of 385142187 is 781241583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385142187 - 2² = 385142183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385142183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6928 + ... + 28605.

It is an arithmetic number, because the mean of its divisors is an integer number (64209938).

Almost surely, 2^385142187 is an apocalyptic number.

385142187 is a deficient number, since it is larger than the sum of its proper divisors (128537317).

385142187 is a wasteful number, since it uses less digits than its factorization.

385142187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39149.

The product of its digits is 53760, while the sum is 39.

The square root of 385142187 is about 19625.0397961380. The cubic root of 385142187 is about 727.5681805705.

The spelling of 385142187 in words is "three hundred eighty-five million, one hundred forty-two thousand, one hundred eighty-seven".