107978215 has 16 divisors (see below), whose sum is σ = 138511296. Its totient is φ = 80608000.

The previous prime is 107978207. The next prime is 107978249. The reversal of 107978215 is 512879701.

It is not a de Polignac number, because 107978215 - 2³ = 107978207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6736 + ... + 16165.

It is an arithmetic number, because the mean of its divisors is an integer number (8656956).

Almost surely, 2^107978215 is an apocalyptic number.

107978215 is a deficient number, since it is larger than the sum of its proper divisors (30533081).

107978215 is a wasteful number, since it uses less digits than its factorization.

107978215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22970.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 107978215 is about 10391.2566612513. The cubic root of 107978215 is about 476.1882935003.

The spelling of 107978215 in words is "one hundred seven million, nine hundred seventy-eight thousand, two hundred fifteen".