1830099889 has 2 divisors, whose sum is σ = 1830099890. Its totient is φ = 1830099888.

The previous prime is 1830099877. The next prime is 1830099899. The reversal of 1830099889 is 9889900381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1779405489 + 50694400 = 42183^2 + 7120^2 .

It is an emirp because it is prime and its reverse (9889900381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1830099889 - 2¹⁵ = 1830067121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1830099899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915049944 + 915049945.

It is an arithmetic number, because the mean of its divisors is an integer number (915049945).

Almost surely, 2^1830099889 is an apocalyptic number.

It is an amenable number.

1830099889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830099889 is an equidigital number, since it uses as much as digits as its factorization.

1830099889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 1830099889 is about 42779.6667705582. Note that the first 3 decimals coincide. The cubic root of 1830099889 is about 1223.1834553609.

The spelling of 1830099889 in words is "one billion, eight hundred thirty million, ninety-nine thousand, eight hundred eighty-nine".