1834849189 has 2 divisors, whose sum is σ = 1834849190. Its totient is φ = 1834849188.

The previous prime is 1834849183. The next prime is 1834849213. The reversal of 1834849189 is 9819484381.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1765260225 + 69588964 = 42015^2 + 8342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1834849189 - 2⁵ = 1834849157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1834849183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917424594 + 917424595.

It is an arithmetic number, because the mean of its divisors is an integer number (917424595).

Almost surely, 2^1834849189 is an apocalyptic number.

It is an amenable number.

1834849189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834849189 is an equidigital number, since it uses as much as digits as its factorization.

1834849189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 55.

The square root of 1834849189 is about 42835.1396519260. The cubic root of 1834849189 is about 1224.2406375828.

The spelling of 1834849189 in words is "one billion, eight hundred thirty-four million, eight hundred forty-nine thousand, one hundred eighty-nine".