107115805 has 4 divisors (see below), whose sum is σ = 128538972. Its totient is φ = 85692640.

The previous prime is 107115803. The next prime is 107115823. The reversal of 107115805 is 508511701.

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 74545956 + 32569849 = 8634^2 + 5707^2 .

It is not a de Polignac number, because 107115805 - 2¹ = 107115803 is a prime.

It is a super-2 number, since 2×107115805² = 22947591361596050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107115803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10711576 + ... + 10711585.

It is an arithmetic number, because the mean of its divisors is an integer number (32134743).

Almost surely, 2^107115805 is an apocalyptic number.

It is an amenable number.

107115805 is a deficient number, since it is larger than the sum of its proper divisors (21423167).

107115805 is an equidigital number, since it uses as much as digits as its factorization.

107115805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423166.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 107115805 is about 10349.6765649947. The cubic root of 107115805 is about 474.9171489846.

The spelling of 107115805 in words is "one hundred seven million, one hundred fifteen thousand, eight hundred five".