385144093 has 4 divisors (see below), whose sum is σ = 397568128. Its totient is φ = 372720060.

The previous prime is 385144049. The next prime is 385144139. The reversal of 385144093 is 390441583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385144093 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 (385144493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6211971 + ... + 6212032.

It is an arithmetic number, because the mean of its divisors is an integer number (99392032).

Almost surely, 2^385144093 is an apocalyptic number.

It is an amenable number.

385144093 is a deficient number, since it is larger than the sum of its proper divisors (12424035).

385144093 is a wasteful number, since it uses less digits than its factorization.

385144093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424034.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 385144093 is about 19625.0883564890. The cubic root of 385144093 is about 727.5693807702.

The spelling of 385144093 in words is "three hundred eighty-five million, one hundred forty-four thousand, ninety-three".