100224451 has 4 divisors (see below), whose sum is σ = 100674112. Its totient is φ = 99774792.

The previous prime is 100224391. The next prime is 100224497. The reversal of 100224451 is 154422001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154422001 = 2819 ⋅54779.

It is a cyclic number.

It is not a de Polignac number, because 100224451 - 2⁹ = 100223939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100924451) 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, 224496 + ... + 224941.

It is an arithmetic number, because the mean of its divisors is an integer number (25168528).

Almost surely, 2^100224451 is an apocalyptic number.

100224451 is a deficient number, since it is larger than the sum of its proper divisors (449661).

100224451 is an equidigital number, since it uses as much as digits as its factorization.

100224451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449660.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 100224451 is about 10011.2162597758. The cubic root of 100224451 is about 464.5058936197.

Adding to 100224451 its reverse (154422001), we get a palindrome (254646452).

The spelling of 100224451 in words is "one hundred million, two hundred twenty-four thousand, four hundred fifty-one".