18159068 has 6 divisors (see below), whose sum is σ = 31778376. Its totient is φ = 9079532.

The previous prime is 18159067. The next prime is 18159131. The reversal of 18159068 is 86095181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18159067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2269880 + ... + 2269887.

It is an arithmetic number, because the mean of its divisors is an integer number (5296396).

Almost surely, 2^18159068 is an apocalyptic number.

It is an amenable number.

18159068 is a deficient number, since it is larger than the sum of its proper divisors (13619308).

18159068 is a wasteful number, since it uses less digits than its factorization.

18159068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539771 (or 4539769 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 18159068 is about 4261.3457968111. The cubic root of 18159068 is about 262.8438692213.

The spelling of 18159068 in words is "eighteen million, one hundred fifty-nine thousand, sixty-eight".