160390381 has 8 divisors (see below), whose sum is σ = 169021280. Its totient is φ = 151778448.

The previous prime is 160390357. The next prime is 160390403. The reversal of 160390381 is 183093061.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160390381 is a prime.

It is a super-2 number, since 2×160390381² = 51450148634650322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160390331) 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 7 ways as a sum of consecutive naturals, for example, 14710 + ... + 23176.

It is an arithmetic number, because the mean of its divisors is an integer number (21127660).

Almost surely, 2^160390381 is an apocalyptic number.

It is an amenable number.

160390381 is a deficient number, since it is larger than the sum of its proper divisors (8630899).

160390381 is an equidigital number, since it uses as much as digits as its factorization.

160390381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9483.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 160390381 is about 12664.5324035276. The cubic root of 160390381 is about 543.3246884929.

The spelling of 160390381 in words is "one hundred sixty million, three hundred ninety thousand, three hundred eighty-one".