105595990 has 16 divisors (see below), whose sum is σ = 198337248. Its totient is φ = 40401856.

The previous prime is 105595979. The next prime is 105595991. The reversal of 105595990 is 99595501.

It is a happy number.

It is a super-2 number, since 2×105595990² = 22301026208160200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105595991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229327 + ... + 229786.

It is an arithmetic number, because the mean of its divisors is an integer number (12396078).

Almost surely, 2^105595990 is an apocalyptic number.

105595990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105595990 is a deficient number, since it is larger than the sum of its proper divisors (92741258).

105595990 is a wasteful number, since it uses less digits than its factorization.

105595990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459143.

The product of its (nonzero) digits is 91125, while the sum is 43.

The square root of 105595990 is about 10275.9909497819. The cubic root of 105595990 is about 472.6603171824.

The spelling of 105595990 in words is "one hundred five million, five hundred ninety-five thousand, nine hundred ninety".