380203165 has 4 divisors (see below), whose sum is σ = 456243804. Its totient is φ = 304162528.

The previous prime is 380203141. The next prime is 380203171. The reversal of 380203165 is 561302083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204004089 + 176199076 = 14283^2 + 13274^2 .

It is a cyclic number.

It is not a de Polignac number, because 380203165 - 2⁷ = 380203037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38020312 + ... + 38020321.

It is an arithmetic number, because the mean of its divisors is an integer number (114060951).

Almost surely, 2^380203165 is an apocalyptic number.

It is an amenable number.

380203165 is a deficient number, since it is larger than the sum of its proper divisors (76040639).

380203165 is an equidigital number, since it uses as much as digits as its factorization.

380203165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76040638.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 380203165 is about 19498.7990655835. The cubic root of 380203165 is about 724.4447051954. Note that the first 3 decimals are identical.

The spelling of 380203165 in words is "three hundred eighty million, two hundred three thousand, one hundred sixty-five".