10115818 has 8 divisors (see below), whose sum is σ = 15191748. Its totient is φ = 5051904.

The previous prime is 10115803. The next prime is 10115821. The reversal of 10115818 is 81851101.

It can be written as a sum of positive squares in 2 ways, for example, as 8219689 + 1896129 = 2867^2 + 1377^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 10115792 and 10115801.

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 3 ways as a sum of consecutive naturals, for example, 471 + ... + 4522.

Almost surely, 2^10115818 is an apocalyptic number.

10115818 is a deficient number, since it is larger than the sum of its proper divisors (5075930).

10115818 is a wasteful number, since it uses less digits than its factorization.

10115818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008.

The product of its (nonzero) digits is 320, while the sum is 25.

The square root of 10115818 is about 3180.5373759791. The cubic root of 10115818 is about 216.2720195427.

Adding to 10115818 its reverse (81851101), we get a palindrome (91966919).

The spelling of 10115818 in words is "ten million, one hundred fifteen thousand, eight hundred eighteen".