381170005 has 16 divisors (see below), whose sum is σ = 486088560. Its totient is φ = 285944832.

The previous prime is 381169951. The next prime is 381170021. The reversal of 381170005 is 500071183.

It can be written as a sum of positive squares in 8 ways, for example, as 4848804 + 376321201 = 2202^2 + 19399^2 .

It is a cyclic number.

It is not a de Polignac number, because 381170005 - 2⁹ = 381169493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15451 + ... + 31639.

It is an arithmetic number, because the mean of its divisors is an integer number (30380535).

Almost surely, 2^381170005 is an apocalyptic number.

It is an amenable number.

381170005 is a deficient number, since it is larger than the sum of its proper divisors (104918555).

381170005 is a wasteful number, since it uses less digits than its factorization.

381170005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16488.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 381170005 is about 19523.5756202597. The cubic root of 381170005 is about 725.0582624601.

The spelling of 381170005 in words is "three hundred eighty-one million, one hundred seventy thousand, five".