100001810 has 16 divisors (see below), whose sum is σ = 180202752. Its totient is φ = 39956400.

The previous prime is 100001809. The next prime is 100001813. The reversal of 100001810 is 18100001.

It is a super-2 number, since 2×100001810² = 20000724006552200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100001791 and 100001800.

It is not an unprimeable number, because it can be changed into a prime (100001813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865 + ... + 14955.

It is an arithmetic number, because the mean of its divisors is an integer number (11262672).

Almost surely, 2^100001810 is an apocalyptic number.

100001810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100001810 is a deficient number, since it is larger than the sum of its proper divisors (80200942).

100001810 is a wasteful number, since it uses less digits than its factorization.

100001810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 100001810 is about 10000.0904995905. The cubic root of 100001810 is about 464.1616837696.

Adding to 100001810 its reverse (18100001), we get a palindrome (118101811).

The spelling of 100001810 in words is "one hundred million, one thousand, eight hundred ten".