100216378 has 4 divisors (see below), whose sum is σ = 150324570. Its totient is φ = 50108188.

The previous prime is 100216339. The next prime is 100216381. The reversal of 100216378 is 873612001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83594449 + 16621929 = 9143^2 + 4077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25054093 + ... + 25054096.

Almost surely, 2^100216378 is an apocalyptic number.

100216378 is a deficient number, since it is larger than the sum of its proper divisors (50108192).

100216378 is an equidigital number, since it uses as much as digits as its factorization.

100216378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50108191.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 100216378 is about 10010.8130538933. The cubic root of 100216378 is about 464.4934214245.

Adding to 100216378 its reverse (873612001), we get a palindrome (973828379).

The spelling of 100216378 in words is "one hundred million, two hundred sixteen thousand, three hundred seventy-eight".