100442233 has 4 divisors (see below), whose sum is σ = 101818228. Its totient is φ = 99066240.

The previous prime is 100442207. The next prime is 100442269. The reversal of 100442233 is 332244001.

It is the 4092-nd star number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332244001 = 3061 ⋅108541.

It can be written as a sum of positive squares in 2 ways, for example, as 78801129 + 21641104 = 8877^2 + 4652^2 .

It is a cyclic number.

It is not a de Polignac number, because 100442233 - 2¹³ = 100434041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100442233.

It is not an unprimeable number, because it can be changed into a prime (100442203) 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, 687888 + ... + 688033.

It is an arithmetic number, because the mean of its divisors is an integer number (25454557).

Almost surely, 2^100442233 is an apocalyptic number.

It is an amenable number.

100442233 is a deficient number, since it is larger than the sum of its proper divisors (1375995).

100442233 is an equidigital number, since it uses as much as digits as its factorization.

100442233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375994.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 100442233 is about 10022.0872576525. The cubic root of 100442233 is about 464.8420984662.

Adding to 100442233 its reverse (332244001), we get a palindrome (432686234).

The spelling of 100442233 in words is "one hundred million, four hundred forty-two thousand, two hundred thirty-three".