100454421 has 8 divisors (see below), whose sum is σ = 135825984. Its totient is φ = 66026240.

The previous prime is 100454399. The next prime is 100454423. The reversal of 100454421 is 124454001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100454421 - 2¹⁵ = 100421653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100454423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235596 + ... + 236021.

It is an arithmetic number, because the mean of its divisors is an integer number (16978248).

Almost surely, 2^100454421 is an apocalyptic number.

It is an amenable number.

100454421 is a deficient number, since it is larger than the sum of its proper divisors (35371563).

100454421 is an equidigital number, since it uses as much as digits as its factorization.

100454421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471691.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 100454421 is about 10022.6952961766. The cubic root of 100454421 is about 464.8608995428.

The spelling of 100454421 in words is "one hundred million, four hundred fifty-four thousand, four hundred twenty-one".