1916847241 has 2 divisors, whose sum is σ = 1916847242. Its totient is φ = 1916847240.

The previous prime is 1916847221. The next prime is 1916847253. The reversal of 1916847241 is 1427486191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1732973641 + 183873600 = 41629^2 + 13560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1916847241 - 2²³ = 1908458633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1916847221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958423620 + 958423621.

It is an arithmetic number, because the mean of its divisors is an integer number (958423621).

Almost surely, 2^1916847241 is an apocalyptic number.

It is an amenable number.

1916847241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1916847241 is an equidigital number, since it uses as much as digits as its factorization.

1916847241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The square root of 1916847241 is about 43781.8140441896. The cubic root of 1916847241 is about 1242.2123272274.

The spelling of 1916847241 in words is "one billion, nine hundred sixteen million, eight hundred forty-seven thousand, two hundred forty-one".