10181018 has 16 divisors (see below), whose sum is σ = 15624360. Its totient is φ = 4974336.

The previous prime is 10180991. The next prime is 10181033. The reversal of 10181018 is 81018101.

It can be written as a sum of positive squares in 4 ways, for example, as 9966649 + 214369 = 3157^2 + 463^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19748 + ... + 20256.

Almost surely, 2^10181018 is an apocalyptic number.

10181018 is a deficient number, since it is larger than the sum of its proper divisors (5443342).

10181018 is a wasteful number, since it uses less digits than its factorization.

10181018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 10181018 is about 3190.7707532820. The cubic root of 10181018 is about 216.7356745343.

Adding to 10181018 its reverse (81018101), we get a palindrome (91199119).

It can be divided in two parts, 101 and 81018, that multiplied together give a palindrome (8182818).

The spelling of 10181018 in words is "ten million, one hundred eighty-one thousand, eighteen".