18694141 has 4 divisors (see below), whose sum is σ = 18709792. Its totient is φ = 18678492.

The previous prime is 18694133. The next prime is 18694153. The reversal of 18694141 is 14149681.

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 a cyclic number.

It is not a de Polignac number, because 18694141 - 2³ = 18694133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18694097 and 18694106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18694111) 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, 5871 + ... + 8476.

It is an arithmetic number, because the mean of its divisors is an integer number (4677448).

Almost surely, 2^18694141 is an apocalyptic number.

It is an amenable number.

18694141 is a deficient number, since it is larger than the sum of its proper divisors (15651).

18694141 is a wasteful number, since it uses less digits than its factorization.

18694141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15650.

The product of its digits is 6912, while the sum is 34.

The square root of 18694141 is about 4323.6721661107. The cubic root of 18694141 is about 265.4005618992.

The spelling of 18694141 in words is "eighteen million, six hundred ninety-four thousand, one hundred forty-one".