100940705 has 4 divisors (see below), whose sum is σ = 121128852. Its totient is φ = 80752560.

The previous prime is 100940701. The next prime is 100940717. The reversal of 100940705 is 507049001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68541841 + 32398864 = 8279^2 + 5692^2 .

It is not a de Polignac number, because 100940705 - 2² = 100940701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100940701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10094066 + ... + 10094075.

It is an arithmetic number, because the mean of its divisors is an integer number (30282213).

Almost surely, 2^100940705 is an apocalyptic number.

It is an amenable number.

100940705 is a deficient number, since it is larger than the sum of its proper divisors (20188147).

100940705 is an equidigital number, since it uses as much as digits as its factorization.

100940705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20188146.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 100940705 is about 10046.9251515078. The cubic root of 100940705 is about 465.6097984917.

Adding to 100940705 its reverse (507049001), we get a palindrome (607989706).

It can be divided in two parts, 1009 and 40705, that added together give a palindrome (41714).

The spelling of 100940705 in words is "one hundred million, nine hundred forty thousand, seven hundred five".