1854141889 has 2 divisors, whose sum is σ = 1854141890. Its totient is φ = 1854141888.

The previous prime is 1854141851. The next prime is 1854141917. The reversal of 1854141889 is 9881414581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1800559489 + 53582400 = 42433^2 + 7320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1854141889 - 2¹⁵ = 1854109121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1854141829) 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 as a sum of consecutive naturals, namely, 927070944 + 927070945.

It is an arithmetic number, because the mean of its divisors is an integer number (927070945).

Almost surely, 2^1854141889 is an apocalyptic number.

It is an amenable number.

1854141889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1854141889 is an equidigital number, since it uses as much as digits as its factorization.

1854141889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 368640, while the sum is 49.

The square root of 1854141889 is about 43059.7478975435. The cubic root of 1854141889 is about 1228.5164851726.

The spelling of 1854141889 in words is "one billion, eight hundred fifty-four million, one hundred forty-one thousand, eight hundred eighty-nine".