1830351139 has 4 divisors (see below), whose sum is σ = 1830457024. Its totient is φ = 1830245256.

The previous prime is 1830351101. The next prime is 1830351143. The reversal of 1830351139 is 9311530381.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9311530381 = 23 ⋅404849147.

It is a cyclic number.

It is not a de Polignac number, because 1830351139 - 2¹¹ = 1830349091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830361139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20307 + ... + 63820.

It is an arithmetic number, because the mean of its divisors is an integer number (457614256).

Almost surely, 2^1830351139 is an apocalyptic number.

1830351139 is a deficient number, since it is larger than the sum of its proper divisors (105885).

1830351139 is an equidigital number, since it uses as much as digits as its factorization.

1830351139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105884.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1830351139 is about 42782.6032284152. The cubic root of 1830351139 is about 1223.2394287683.

The spelling of 1830351139 in words is "one billion, eight hundred thirty million, three hundred fifty-one thousand, one hundred thirty-nine".