105909590 has 8 divisors (see below), whose sum is σ = 190637280. Its totient is φ = 42363832.

The previous prime is 105909581. The next prime is 105909607. The reversal of 105909590 is 95909501.

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

It is a super-2 number, since 2×105909590² = 22433682507936200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 5295470 + ... + 5295489.

It is an arithmetic number, because the mean of its divisors is an integer number (23829660).

Almost surely, 2^105909590 is an apocalyptic number.

105909590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105909590 is a deficient number, since it is larger than the sum of its proper divisors (84727690).

105909590 is a wasteful number, since it uses less digits than its factorization.

105909590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10590966.

The product of its (nonzero) digits is 18225, while the sum is 38.

The square root of 105909590 is about 10291.2385066133. The cubic root of 105909590 is about 473.1277584886.

The spelling of 105909590 in words is "one hundred five million, nine hundred nine thousand, five hundred ninety".