1896133493 has 2 divisors, whose sum is σ = 1896133494. Its totient is φ = 1896133492.

The previous prime is 1896133469. The next prime is 1896133513. The reversal of 1896133493 is 3943316981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986085604 + 910047889 = 31402^2 + 30167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1896133493 - 2⁶ = 1896133429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1896133193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948066746 + 948066747.

It is an arithmetic number, because the mean of its divisors is an integer number (948066747).

Almost surely, 2^1896133493 is an apocalyptic number.

It is an amenable number.

1896133493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1896133493 is an equidigital number, since it uses as much as digits as its factorization.

1896133493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 47.

The square root of 1896133493 is about 43544.6149713142. The cubic root of 1896133493 is about 1237.7215994410.

The spelling of 1896133493 in words is "one billion, eight hundred ninety-six million, one hundred thirty-three thousand, four hundred ninety-three".