100412421 has 8 divisors (see below), whose sum is σ = 141758784. Its totient is φ = 63003840.

The previous prime is 100412419. The next prime is 100412437. The reversal of 100412421 is 124214001.

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

It is not a de Polignac number, because 100412421 - 2¹ = 100412419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100412421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100412461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984385 + ... + 984486.

It is an arithmetic number, because the mean of its divisors is an integer number (17719848).

Almost surely, 2^100412421 is an apocalyptic number.

It is an amenable number.

100412421 is a deficient number, since it is larger than the sum of its proper divisors (41346363).

100412421 is a wasteful number, since it uses less digits than its factorization.

100412421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968891.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 100412421 is about 10020.5998323454. The cubic root of 100412421 is about 464.7961043875.

Adding to 100412421 its reverse (124214001), we get a palindrome (224626422).

The spelling of 100412421 in words is "one hundred million, four hundred twelve thousand, four hundred twenty-one".