18136941 has 8 divisors (see below), whose sum is σ = 24202464. Its totient is φ = 12081360.

The previous prime is 18136933. The next prime is 18136957. The reversal of 18136941 is 14963181.

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

It is not a de Polignac number, because 18136941 - 2³ = 18136933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18136901) 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, 4975 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (3025308).

Almost surely, 2^18136941 is an apocalyptic number.

It is an amenable number.

18136941 is a deficient number, since it is larger than the sum of its proper divisors (6065523).

18136941 is a wasteful number, since it uses less digits than its factorization.

18136941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971.

The product of its digits is 5184, while the sum is 33.

The square root of 18136941 is about 4258.7487599059. The cubic root of 18136941 is about 262.7370665638.

The spelling of 18136941 in words is "eighteen million, one hundred thirty-six thousand, nine hundred forty-one".