105601605 has 16 divisors (see below), whose sum is σ = 169513344. Its totient is φ = 56137280.

The previous prime is 105601597. The next prime is 105601607. The reversal of 105601605 is 506106501.

It is not a de Polignac number, because 105601605 - 2³ = 105601597 is a prime.

It is a super-2 number, since 2×105601605² = 22303397957152050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105601607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6654 + ... + 15983.

It is an arithmetic number, because the mean of its divisors is an integer number (10594584).

Almost surely, 2^105601605 is an apocalyptic number.

105601605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105601605 is a deficient number, since it is larger than the sum of its proper divisors (63911739).

105601605 is a wasteful number, since it uses less digits than its factorization.

105601605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22956.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 105601605 is about 10276.2641558107. The cubic root of 105601605 is about 472.6686948384.

The spelling of 105601605 in words is "one hundred five million, six hundred one thousand, six hundred five".