18061012 has 12 divisors (see below), whose sum is σ = 31933300. Its totient is φ = 8937216.

The previous prime is 18061009. The next prime is 18061061. The reversal of 18061012 is 21016081.

It can be written as a sum of positive squares in 2 ways, for example, as 13883076 + 4177936 = 3726^2 + 2044^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22887 + ... + 23662.

Almost surely, 2^18061012 is an apocalyptic number.

It is an amenable number.

18061012 is a deficient number, since it is larger than the sum of its proper divisors (13872288).

18061012 is a wasteful number, since it uses less digits than its factorization.

18061012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46650 (or 46648 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 18061012 is about 4249.8249375710. The cubic root of 18061012 is about 262.3699104465.

Adding to 18061012 its reverse (21016081), we get a palindrome (39077093).

The spelling of 18061012 in words is "eighteen million, sixty-one thousand, twelve".