385515143 has 8 divisors (see below), whose sum is σ = 415332288. Its totient is φ = 355721184.

The previous prime is 385515133. The next prime is 385515157. The reversal of 385515143 is 341515583.

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

It is not a de Polignac number, because 385515143 - 2⁴ = 385515127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385515113) 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 7 ways as a sum of consecutive naturals, for example, 45821 + ... + 53577.

It is an arithmetic number, because the mean of its divisors is an integer number (51916536).

Almost surely, 2^385515143 is an apocalyptic number.

385515143 is a deficient number, since it is larger than the sum of its proper divisors (29817145).

385515143 is a wasteful number, since it uses less digits than its factorization.

385515143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11593.

The product of its digits is 36000, while the sum is 35.

The square root of 385515143 is about 19634.5395413287. The cubic root of 385515143 is about 727.8029539314.

The spelling of 385515143 in words is "three hundred eighty-five million, five hundred fifteen thousand, one hundred forty-three".