381078125 has 28 divisors (see below), whose sum is σ = 493353060. Its totient is φ = 294350000.

The previous prime is 381078121. The next prime is 381078127. The reversal of 381078125 is 521870183.

The cubic root of 381078125 is 725.

It is a perfect power (a cube), and thus also a powerful number.

It can be written as a sum of positive squares in 14 ways, for example, as 191905609 + 189172516 = 13853^2 + 13754^2 .

It is not a de Polignac number, because 381078125 - 2² = 381078121 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381078121) 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 27 ways as a sum of consecutive naturals, for example, 13140611 + ... + 13140639.

Almost surely, 2^381078125 is an apocalyptic number.

It is an amenable number.

381078125 is a deficient number, since it is larger than the sum of its proper divisors (112274935).

381078125 is an frugal number, since it uses more digits than its factorization.

381078125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 381078125 is about 19521.2224258626. Note that the first 3 decimals coincide.

The spelling of 381078125 in words is "three hundred eighty-one million, seventy-eight thousand, one hundred twenty-five".