100421254 has 8 divisors (see below), whose sum is σ = 154135080. Its totient is φ = 49042896.

The previous prime is 100421249. The next prime is 100421257. The reversal of 100421254 is 452124001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421257) 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, 583759 + ... + 583930.

It is an arithmetic number, because the mean of its divisors is an integer number (19266885).

Almost surely, 2^100421254 is an apocalyptic number.

100421254 is a deficient number, since it is larger than the sum of its proper divisors (53713826).

100421254 is a wasteful number, since it uses less digits than its factorization.

100421254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167734.

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

The square root of 100421254 is about 10021.0405647318. The cubic root of 100421254 is about 464.8097329259.

Adding to 100421254 its reverse (452124001), we get a palindrome (552545255).

The spelling of 100421254 in words is "one hundred million, four hundred twenty-one thousand, two hundred fifty-four".