100225603 has 4 divisors (see below), whose sum is σ = 100840648. Its totient is φ = 99610560.

The previous prime is 100225577. The next prime is 100225613. The reversal of 100225603 is 306522001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306522001 = 307 ⋅998443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100225603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100225613) 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, 307278 + ... + 307603.

It is an arithmetic number, because the mean of its divisors is an integer number (25210162).

Almost surely, 2^100225603 is an apocalyptic number.

100225603 is a deficient number, since it is larger than the sum of its proper divisors (615045).

100225603 is an equidigital number, since it uses as much as digits as its factorization.

100225603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615044.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 100225603 is about 10011.2737950772. The cubic root of 100225603 is about 464.5076733210.

Adding to 100225603 its reverse (306522001), we get a palindrome (406747604).

It can be divided in two parts, 10022 and 5603, that added together give a 6-th power (15625 = 5⁶).

The spelling of 100225603 in words is "one hundred million, two hundred twenty-five thousand, six hundred three".