100009814 has 4 divisors (see below), whose sum is σ = 150014724. Its totient is φ = 50004906.

The previous prime is 100009769. The next prime is 100009817. The reversal of 100009814 is 418900001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418900001 = 13 ⋅32223077.

It is a self number, because there is not a number n which added to its sum of digits gives 100009814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100009817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25002452 + ... + 25002455.

It is an arithmetic number, because the mean of its divisors is an integer number (37503681).

Almost surely, 2^100009814 is an apocalyptic number.

100009814 is a deficient number, since it is larger than the sum of its proper divisors (50004910).

100009814 is an equidigital number, since it uses as much as digits as its factorization.

100009814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50004909.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 100009814 is about 10000.4906879613. The cubic root of 100009814 is about 464.1740670489.

Adding to 100009814 its reverse (418900001), we get a palindrome (518909815).

The spelling of 100009814 in words is "one hundred million, nine thousand, eight hundred fourteen".