385818147 has 56 divisors (see below), whose sum is σ = 679776048. Its totient is φ = 215784000.

The previous prime is 385818127. The next prime is 385818149. The reversal of 385818147 is 741818583.

It is a happy number.

It is not a de Polignac number, because 385818147 - 2⁷ = 385818019 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (385818149) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 102397 + ... + 106097.

It is an arithmetic number, because the mean of its divisors is an integer number (12138858).

Almost surely, 2^385818147 is an apocalyptic number.

385818147 is the 16038-th pentagonal number.

385818147 is a deficient number, since it is larger than the sum of its proper divisors (293957901).

385818147 is a wasteful number, since it uses less digits than its factorization.

385818147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3728 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 385818147 is about 19642.2541221724. The cubic root of 385818147 is about 727.9935815107.

It can be divided in two parts, 38 and 5818147, that added together give a palindrome (5818185).

The spelling of 385818147 in words is "three hundred eighty-five million, eight hundred eighteen thousand, one hundred forty-seven".