385309141 has 4 divisors (see below), whose sum is σ = 440353312. Its totient is φ = 330264972.

The previous prime is 385309081. The next prime is 385309163. The reversal of 385309141 is 141903583.

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 not a de Polignac number, because 385309141 - 2¹¹ = 385307093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385309097 and 385309106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385909141) 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 3 ways as a sum of consecutive naturals, for example, 27522075 + ... + 27522088.

It is an arithmetic number, because the mean of its divisors is an integer number (110088328).

Almost surely, 2^385309141 is an apocalyptic number.

It is an amenable number.

385309141 is a deficient number, since it is larger than the sum of its proper divisors (55044171).

385309141 is an equidigital number, since it uses as much as digits as its factorization.

385309141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55044170.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 385309141 is about 19629.2929317385. The cubic root of 385309141 is about 727.6732957499.

The spelling of 385309141 in words is "three hundred eighty-five million, three hundred nine thousand, one hundred forty-one".