1813948099 has 8 divisors (see below), whose sum is σ = 1823330880. Its totient is φ = 1804580736.

The previous prime is 1813948079. The next prime is 1813948109. The reversal of 1813948099 is 9908493181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1813948099 - 2⁵ = 1813948067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1813948079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286779 + ... + 293035.

It is an arithmetic number, because the mean of its divisors is an integer number (227916360).

Almost surely, 2^1813948099 is an apocalyptic number.

1813948099 is a deficient number, since it is larger than the sum of its proper divisors (9382781).

1813948099 is a wasteful number, since it uses less digits than its factorization.

1813948099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 1813948099 is about 42590.4695794728. The cubic root of 1813948099 is about 1219.5743608348.

The spelling of 1813948099 in words is "one billion, eight hundred thirteen million, nine hundred forty-eight thousand, ninety-nine".