100143215 has 8 divisors (see below), whose sum is σ = 120267168. Its totient is φ = 80051040.

The previous prime is 100143191. The next prime is 100143223. The reversal of 100143215 is 512341001.

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

It is a de Polignac number, because none of the positive numbers 2^k-100143215 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100143193 and 100143202.

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, 347 + ... + 14156.

It is an arithmetic number, because the mean of its divisors is an integer number (15033396).

Almost surely, 2^100143215 is an apocalyptic number.

100143215 is a deficient number, since it is larger than the sum of its proper divisors (20123953).

100143215 is a wasteful number, since it uses less digits than its factorization.

100143215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15889.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100143215 is about 10007.1581880172. The cubic root of 100143215 is about 464.3803593809.

Adding to 100143215 its reverse (512341001), we get a palindrome (612484216).

The spelling of 100143215 in words is "one hundred million, one hundred forty-three thousand, two hundred fifteen".