100225243 has 4 divisors (see below), whose sum is σ = 100320768. Its totient is φ = 100129720.

The previous prime is 100225231. The next prime is 100225253. The reversal of 100225243 is 342522001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342522001 = 17 ⋅20148353.

It is a cyclic number.

It is not a de Polignac number, because 100225243 - 2²¹ = 98128091 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 100225243.

It is not an unprimeable number, because it can be changed into a prime (100225253) 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, 46171 + ... + 48292.

It is an arithmetic number, because the mean of its divisors is an integer number (25080192).

Almost surely, 2^100225243 is an apocalyptic number.

100225243 is a deficient number, since it is larger than the sum of its proper divisors (95525).

100225243 is an equidigital number, since it uses as much as digits as its factorization.

100225243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95524.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 100225243 is about 10011.2558153311. The cubic root of 100225243 is about 464.5071171658.

Adding to 100225243 its reverse (342522001), we get a palindrome (442747244).

The spelling of 100225243 in words is "one hundred million, two hundred twenty-five thousand, two hundred forty-three".