105900071 has 4 divisors (see below), whose sum is σ = 108153312. Its totient is φ = 103646832.

The previous prime is 105900043. The next prime is 105900077. The reversal of 105900071 is 170009501.

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

It is a cyclic number.

It is not a de Polignac number, because 105900071 - 2²² = 101705767 is a prime.

It is a super-2 number, since 2×105900071² = 22429650075610082, 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 (105900077) 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, 1126550 + ... + 1126643.

It is an arithmetic number, because the mean of its divisors is an integer number (27038328).

Almost surely, 2^105900071 is an apocalyptic number.

105900071 is a deficient number, since it is larger than the sum of its proper divisors (2253241).

105900071 is an equidigital number, since it uses as much as digits as its factorization.

105900071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253240.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 105900071 is about 10290.7760154422. The cubic root of 105900071 is about 473.1135833855.

Adding to 105900071 its reverse (170009501), we get a palindrome (275909572).

The spelling of 105900071 in words is "one hundred five million, nine hundred thousand, seventy-one".