1916300189 has 12 divisors (see below), whose sum is σ = 2017587348. Its totient is φ = 1818979200.

The previous prime is 1916300149. The next prime is 1916300261. The reversal of 1916300189 is 9810036191.

It can be written as a sum of positive squares in 6 ways, for example, as 59552089 + 1856748100 = 7717^2 + 43090^2 .

It is not a de Polignac number, because 1916300189 - 2²⁴ = 1899522973 is a prime.

It is a super-2 number, since 2×1916300189² = 7344412828722871442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916300149) 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 11 ways as a sum of consecutive naturals, for example, 39059 + ... + 73199.

It is an arithmetic number, because the mean of its divisors is an integer number (168132279).

Almost surely, 2^1916300189 is an apocalyptic number.

It is an amenable number.

1916300189 is a deficient number, since it is larger than the sum of its proper divisors (101287159).

1916300189 is an equidigital number, since it uses as much as digits as its factorization.

1916300189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34256 (or 34219 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1916300189 is about 43775.5661185552. The cubic root of 1916300189 is about 1242.0941436845.

The spelling of 1916300189 in words is "one billion, nine hundred sixteen million, three hundred thousand, one hundred eighty-nine".