1808105162 has 8 divisors (see below), whose sum is σ = 2712368100. Its totient is φ = 903982464.

The previous prime is 1808105161. The next prime is 1808105171. The reversal of 1808105162 is 2615018081.

It can be written as a sum of positive squares in 2 ways, for example, as 1790220721 + 17884441 = 42311^2 + 4229^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1808105161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7514 + ... + 60602.

Almost surely, 2^1808105162 is an apocalyptic number.

1808105162 is a deficient number, since it is larger than the sum of its proper divisors (904262938).

1808105162 is a wasteful number, since it uses less digits than its factorization.

1808105162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70120.

The product of its (nonzero) digits is 3840, while the sum is 32.

The square root of 1808105162 is about 42521.8198340570. The cubic root of 1808105162 is about 1218.2634888948.

The spelling of 1808105162 in words is "one billion, eight hundred eight million, one hundred five thousand, one hundred sixty-two".