18158063 has 16 divisors (see below), whose sum is σ = 23625216. Its totient is φ = 13532640.

The previous prime is 18158029. The next prime is 18158099. The reversal of 18158063 is 36085181.

It is not a de Polignac number, because 18158063 - 2⁶ = 18157999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18158563) 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 15 ways as a sum of consecutive naturals, for example, 3356 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (1476576).

Almost surely, 2^18158063 is an apocalyptic number.

18158063 is a deficient number, since it is larger than the sum of its proper divisors (5467153).

18158063 is a wasteful number, since it uses less digits than its factorization.

18158063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 18158063 is about 4261.2278746859. The cubic root of 18158063 is about 262.8390201662.

The spelling of 18158063 in words is "eighteen million, one hundred fifty-eight thousand, sixty-three".