18793141 has 4 divisors (see below), whose sum is σ = 18839500. Its totient is φ = 18746784.

The previous prime is 18793133. The next prime is 18793157. The reversal of 18793141 is 14139781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14139781 = 19 ⋅744199.

It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 2220100 = 4071^2 + 1490^2 .

It is a cyclic number.

It is not a de Polignac number, because 18793141 - 2³ = 18793133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18793097 and 18793106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18793121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22566 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (4709875).

Almost surely, 2^18793141 is an apocalyptic number.

It is an amenable number.

18793141 is a deficient number, since it is larger than the sum of its proper divisors (46359).

18793141 is an equidigital number, since it uses as much as digits as its factorization.

18793141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46358.

The product of its digits is 6048, while the sum is 34.

The square root of 18793141 is about 4335.1056503850. The cubic root of 18793141 is about 265.8682380200.

The spelling of 18793141 in words is "eighteen million, seven hundred ninety-three thousand, one hundred forty-one".