100145111 has 4 divisors (see below), whose sum is σ = 109249224. Its totient is φ = 91041000.

The previous prime is 100145107. The next prime is 100145117. The reversal of 100145111 is 111541001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100145111 - 2² = 100145107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100145117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4552040 + ... + 4552061.

It is an arithmetic number, because the mean of its divisors is an integer number (27312306).

Almost surely, 2^100145111 is an apocalyptic number.

100145111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100145111 is a deficient number, since it is larger than the sum of its proper divisors (9104113).

100145111 is an equidigital number, since it uses as much as digits as its factorization.

100145111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9104112.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 100145111 is about 10007.2529197577. The cubic root of 100145111 is about 464.3832900491.

Adding to 100145111 its reverse (111541001), we get a palindrome (211686112).

The spelling of 100145111 in words is "one hundred million, one hundred forty-five thousand, one hundred eleven".