100199078 has 16 divisors (see below), whose sum is σ = 172156704. Its totient is φ = 42845760.

The previous prime is 100199059. The next prime is 100199083. The reversal of 100199078 is 870991001.

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, 1433 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (10759794).

Almost surely, 2^100199078 is an apocalyptic number.

100199078 is a deficient number, since it is larger than the sum of its proper divisors (71957626).

100199078 is a wasteful number, since it uses less digits than its factorization.

100199078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16127.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 100199078 is about 10009.9489509188. The cubic root of 100199078 is about 464.4666919324.

The spelling of 100199078 in words is "one hundred million, one hundred ninety-nine thousand, seventy-eight".