18012514 has 8 divisors (see below), whose sum is σ = 29097180. Its totient is φ = 8313456.

The previous prime is 18012499. The next prime is 18012541. The reversal of 18012514 is 41521081.

It can be written as a sum of positive squares in 2 ways, for example, as 15468489 + 2544025 = 3933^2 + 1595^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346369 + ... + 346420.

Almost surely, 2^18012514 is an apocalyptic number.

18012514 is a deficient number, since it is larger than the sum of its proper divisors (11084666).

18012514 is a wasteful number, since it uses less digits than its factorization.

18012514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692804.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 18012514 is about 4244.1152199251. The cubic root of 18012514 is about 262.1348586072.

Adding to 18012514 its reverse (41521081), we get a palindrome (59533595).

The spelling of 18012514 in words is "eighteen million, twelve thousand, five hundred fourteen".