1840308113 has 4 divisors (see below), whose sum is σ = 2103209280. Its totient is φ = 1577406948.

The previous prime is 1840308101. The next prime is 1840308133. The reversal of 1840308113 is 3118030481.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3118030481 = 1619 ⋅1925899.

It is a cyclic number.

It is not a de Polignac number, because 1840308113 - 2⁶ = 1840308049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1840308133) 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, 131450573 + ... + 131450586.

It is an arithmetic number, because the mean of its divisors is an integer number (525802320).

Almost surely, 2^1840308113 is an apocalyptic number.

It is an amenable number.

1840308113 is a deficient number, since it is larger than the sum of its proper divisors (262901167).

1840308113 is an equidigital number, since it uses as much as digits as its factorization.

1840308113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262901166.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1840308113 is about 42898.8124893918. The cubic root of 1840308113 is about 1225.4535292518.

Adding to 1840308113 its reverse (3118030481), we get a palindrome (4958338594).

The spelling of 1840308113 in words is "one billion, eight hundred forty million, three hundred eight thousand, one hundred thirteen".