381335065 has 8 divisors (see below), whose sum is σ = 473381640. Its totient is φ = 294548352.

The previous prime is 381335063. The next prime is 381335081. The reversal of 381335065 is 560533183.

It can be written as a sum of positive squares in 4 ways, for example, as 95961616 + 285373449 = 9796^2 + 16893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 381335065 - 2¹ = 381335063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 381335065.

It is not an unprimeable number, because it can be changed into a prime (381335063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314804 + ... + 1315093.

It is an arithmetic number, because the mean of its divisors is an integer number (59172705).

Almost surely, 2^381335065 is an apocalyptic number.

It is an amenable number.

381335065 is a deficient number, since it is larger than the sum of its proper divisors (92046575).

381335065 is a wasteful number, since it uses less digits than its factorization.

381335065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629931.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 381335065 is about 19527.8023597127. The cubic root of 381335065 is about 725.1629059214.

The spelling of 381335065 in words is "three hundred eighty-one million, three hundred thirty-five thousand, sixty-five".