10001618 has 24 divisors (see below), whose sum is σ = 16951116. Its totient is φ = 4419360.

The previous prime is 10001617. The next prime is 10001659. The reversal of 10001618 is 81610001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9966649 + 34969 = 3157^2 + 187^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10001596 and 10001605.

It is not an unprimeable number, because it can be changed into a prime (10001617) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8396 + ... + 9512.

Almost surely, 2^10001618 is an apocalyptic number.

10001618 is a deficient number, since it is larger than the sum of its proper divisors (6949498).

10001618 is a wasteful number, since it uses less digits than its factorization.

10001618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 10001618 is about 3162.5334780837. The cubic root of 10001618 is about 215.4550879610.

Adding to 10001618 its reverse (81610001), we get a palindrome (91611619).

The spelling of 10001618 in words is "ten million, one thousand, six hundred eighteen".