18071006 has 8 divisors (see below), whose sum is σ = 27551064. Its totient is φ = 8887320.

The previous prime is 18070999. The next prime is 18071087. The reversal of 18071006 is 60017081.

18071006 = 2124² + 2125² + ... + 2127².

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

It is a super-2 number, since 2×18071006² = 653122515704072, which contains 22 as substring.

It is a plaindrome in base 16.

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, 73940 + ... + 74183.

It is an arithmetic number, because the mean of its divisors is an integer number (3443883).

Almost surely, 2^18071006 is an apocalyptic number.

18071006 is a deficient number, since it is larger than the sum of its proper divisors (9480058).

18071006 is a wasteful number, since it uses less digits than its factorization.

18071006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148186.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 18071006 is about 4251.0005880969. Note that the first 3 decimals coincide. The cubic root of 18071006 is about 262.4182953577.

Adding to 18071006 its reverse (60017081), we get a palindrome (78088087).

The spelling of 18071006 in words is "eighteen million, seventy-one thousand, six".