1830971081 has 4 divisors (see below), whose sum is σ = 1927338000. Its totient is φ = 1734604164.

The previous prime is 1830971069. The next prime is 1830971083. The reversal of 1830971081 is 1801790381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1830971081 - 2⁶ = 1830971017 is a prime.

It is a super-2 number, since 2×1830971081² = 6704910198916617122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830971083) 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, 48183431 + ... + 48183468.

It is an arithmetic number, because the mean of its divisors is an integer number (481834500).

Almost surely, 2^1830971081 is an apocalyptic number.

It is an amenable number.

1830971081 is a deficient number, since it is larger than the sum of its proper divisors (96366919).

1830971081 is an equidigital number, since it uses as much as digits as its factorization.

1830971081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96366918.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 1830971081 is about 42789.8478730645. The cubic root of 1830971081 is about 1223.3775173717.

The spelling of 1830971081 in words is "one billion, eight hundred thirty million, nine hundred seventy-one thousand, eighty-one".