1830118489 has 2 divisors, whose sum is σ = 1830118490. Its totient is φ = 1830118488.

The previous prime is 1830118471. The next prime is 1830118501. The reversal of 1830118489 is 9848110381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1814078464 + 16040025 = 42592^2 + 4005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830118489 - 2¹⁷ = 1829987417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1830118429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915059244 + 915059245.

It is an arithmetic number, because the mean of its divisors is an integer number (915059245).

Almost surely, 2^1830118489 is an apocalyptic number.

It is an amenable number.

1830118489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830118489 is an equidigital number, since it uses as much as digits as its factorization.

1830118489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 43.

The square root of 1830118489 is about 42779.8841630035. The cubic root of 1830118489 is about 1223.1875992395.

The spelling of 1830118489 in words is "one billion, eight hundred thirty million, one hundred eighteen thousand, four hundred eighty-nine".