100398215 has 8 divisors (see below), whose sum is σ = 120544368. Its totient is φ = 80274240.

The previous prime is 100398187. The next prime is 100398257. The reversal of 100398215 is 512893001.

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

It is not a de Polignac number, because 100398215 - 2¹⁰ = 100397191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7004 + ... + 15806.

It is an arithmetic number, because the mean of its divisors is an integer number (15068046).

Almost surely, 2^100398215 is an apocalyptic number.

100398215 is a deficient number, since it is larger than the sum of its proper divisors (20146153).

100398215 is an equidigital number, since it uses as much as digits as its factorization.

100398215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 100398215 is about 10019.8909674707. The cubic root of 100398215 is about 464.7741841084.

It can be divided in two parts, 10039821 and 5, that multiplied together give a palindrome (50199105).

The spelling of 100398215 in words is "one hundred million, three hundred ninety-eight thousand, two hundred fifteen".