100770865 has 8 divisors (see below), whose sum is σ = 130227048. Its totient is φ = 74415360.

The previous prime is 100770847. The next prime is 100770871. The reversal of 100770865 is 568077001.

It can be written as a sum of positive squares in 4 ways, for example, as 4809249 + 95961616 = 2193^2 + 9796^2 .

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-100770865 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100770865.

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, 775096 + ... + 775225.

It is an arithmetic number, because the mean of its divisors is an integer number (16278381).

Almost surely, 2^100770865 is an apocalyptic number.

It is an amenable number.

100770865 is a deficient number, since it is larger than the sum of its proper divisors (29456183).

100770865 is a wasteful number, since it uses less digits than its factorization.

100770865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550339.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 100770865 is about 10038.4692558178. The cubic root of 100770865 is about 465.3485112281.

The spelling of 100770865 in words is "one hundred million, seven hundred seventy thousand, eight hundred sixty-five".