100232005 has 4 divisors (see below), whose sum is σ = 120278412. Its totient is φ = 80185600.

The previous prime is 100231997. The next prime is 100232009. The reversal of 100232005 is 500232001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500232001 = 967 ⋅517303.

It can be written as a sum of positive squares in 2 ways, for example, as 40972801 + 59259204 = 6401^2 + 7698^2 .

It is not a de Polignac number, because 100232005 - 2³ = 100231997 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 (100232009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10023196 + ... + 10023205.

It is an arithmetic number, because the mean of its divisors is an integer number (30069603).

Almost surely, 2^100232005 is an apocalyptic number.

It is an amenable number.

100232005 is a deficient number, since it is larger than the sum of its proper divisors (20046407).

100232005 is an equidigital number, since it uses as much as digits as its factorization.

100232005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046406.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 100232005 is about 10011.5935295037. The cubic root of 100232005 is about 464.5175633914.

Adding to 100232005 its reverse (500232001), we get a palindrome (600464006).

The spelling of 100232005 in words is "one hundred million, two hundred thirty-two thousand, five".