100421146 has 8 divisors (see below), whose sum is σ = 172150560. Its totient is φ = 43037628.

The previous prime is 100421143. The next prime is 100421147. The reversal of 100421146 is 641124001.

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

It is not an unprimeable number, because it can be changed into a prime (100421143) 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, 3586456 + ... + 3586483.

It is an arithmetic number, because the mean of its divisors is an integer number (21518820).

Almost surely, 2^100421146 is an apocalyptic number.

100421146 is a deficient number, since it is larger than the sum of its proper divisors (71729414).

100421146 is an equidigital number, since it uses as much as digits as its factorization.

100421146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172948.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 100421146 is about 10021.0351760684. The cubic root of 100421146 is about 464.8095662963.

Adding to 100421146 its reverse (641124001), we get a palindrome (741545147).

The spelling of 100421146 in words is "one hundred million, four hundred twenty-one thousand, one hundred forty-six".