100780195 has 8 divisors (see below), whose sum is σ = 121570560. Its totient is φ = 80201280.

The previous prime is 100780171. The next prime is 100780217. The reversal of 100780195 is 591087001.

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

It is not a de Polignac number, because 100780195 - 2¹⁷ = 100649123 is a prime.

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, 51810 + ... + 53719.

It is an arithmetic number, because the mean of its divisors is an integer number (15196320).

Almost surely, 2^100780195 is an apocalyptic number.

100780195 is a deficient number, since it is larger than the sum of its proper divisors (20790365).

100780195 is a wasteful number, since it uses less digits than its factorization.

100780195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105725.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 100780195 is about 10038.9339573483. The cubic root of 100780195 is about 465.3628724148.

The spelling of 100780195 in words is "one hundred million, seven hundred eighty thousand, one hundred ninety-five".