18031241 has 8 divisors (see below), whose sum is σ = 19097664. Its totient is φ = 16988400.

The previous prime is 18031217. The next prime is 18031249. The reversal of 18031241 is 14213081.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18031241 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 (18031249) 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, 4310 + ... + 7391.

It is an arithmetic number, because the mean of its divisors is an integer number (2387208).

Almost surely, 2^18031241 is an apocalyptic number.

It is an amenable number.

18031241 is a deficient number, since it is larger than the sum of its proper divisors (1066423).

18031241 is a wasteful number, since it uses less digits than its factorization.

18031241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11791.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18031241 is about 4246.3208781250. The cubic root of 18031241 is about 262.2256713839.

The spelling of 18031241 in words is "eighteen million, thirty-one thousand, two hundred forty-one".