100600421 has 4 divisors (see below), whose sum is σ = 105895200. Its totient is φ = 95305644.

The previous prime is 100600361. The next prime is 100600439. The reversal of 100600421 is 124006001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100600421 - 2¹⁰ = 100599397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100600396 and 100600405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100600471) 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, 2647361 + ... + 2647398.

It is an arithmetic number, because the mean of its divisors is an integer number (26473800).

Almost surely, 2^100600421 is an apocalyptic number.

It is an amenable number.

100600421 is a deficient number, since it is larger than the sum of its proper divisors (5294779).

100600421 is an equidigital number, since it uses as much as digits as its factorization.

100600421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294778.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 100600421 is about 10029.9761216067. The cubic root of 100600421 is about 465.0859994328.

Adding to 100600421 its reverse (124006001), we get a palindrome (224606422).

The spelling of 100600421 in words is "one hundred million, six hundred thousand, four hundred twenty-one".