386145 has 12 divisors (see below), whose sum is σ = 669396. Its totient is φ = 205920.

The previous prime is 386143. The next prime is 386149. The reversal of 386145 is 541683.

It can be written as a sum of positive squares in 2 ways, for example, as 40401 + 345744 = 201^2 + 588^2 .

It is not a de Polignac number, because 386145 - 2¹ = 386143 is a prime.

It is a super-2 number, since 2×386145² = 298215922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (386143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4246 + ... + 4335.

It is an arithmetic number, because the mean of its divisors is an integer number (55783).

2³⁸⁶¹⁴⁵ is an apocalyptic number.

It is an amenable number.

386145 is a deficient number, since it is larger than the sum of its proper divisors (283251).

386145 is a wasteful number, since it uses less digits than its factorization.

386145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8592 (or 8589 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 386145 is about 621.4056646024. The cubic root of 386145 is about 72.8199101240.

The spelling of 386145 in words is "three hundred eighty-six thousand, one hundred forty-five".