18526121 has 8 divisors (see below), whose sum is σ = 19540800. Its totient is φ = 17515440.

The previous prime is 18526117. The next prime is 18526129. The reversal of 18526121 is 12162581.

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

It is a cyclic number.

It is not a de Polignac number, because 18526121 - 2² = 18526117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18526129) 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, 16931 + ... + 17991.

It is an arithmetic number, because the mean of its divisors is an integer number (2442600).

Almost surely, 2^18526121 is an apocalyptic number.

It is an amenable number.

18526121 is a deficient number, since it is larger than the sum of its proper divisors (1014679).

18526121 is a wasteful number, since it uses less digits than its factorization.

18526121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999.

The product of its digits is 960, while the sum is 26.

The square root of 18526121 is about 4304.1980670039. The cubic root of 18526121 is about 264.6030416027.

The spelling of 18526121 in words is "eighteen million, five hundred twenty-six thousand, one hundred twenty-one".