1920190841 has 2 divisors, whose sum is σ = 1920190842. Its totient is φ = 1920190840.

The previous prime is 1920190709. The next prime is 1920190847. The reversal of 1920190841 is 1480910291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1580857600 + 339333241 = 39760^2 + 18421^2 .

It is a cyclic number.

It is not a de Polignac number, because 1920190841 - 2¹⁴ = 1920174457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1920190847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960095420 + 960095421.

It is an arithmetic number, because the mean of its divisors is an integer number (960095421).

Almost surely, 2^1920190841 is an apocalyptic number.

It is an amenable number.

1920190841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1920190841 is an equidigital number, since it uses as much as digits as its factorization.

1920190841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1920190841 is about 43819.9822113154. The cubic root of 1920190841 is about 1242.9341806949.

The spelling of 1920190841 in words is "one billion, nine hundred twenty million, one hundred ninety thousand, eight hundred forty-one".