105911897 has 16 divisors (see below), whose sum is σ = 133537152. Its totient is φ = 81751680.

The previous prime is 105911893. The next prime is 105911951. The reversal of 105911897 is 798119501.

It is a cyclic number.

It is not a de Polignac number, because 105911897 - 2² = 105911893 is a prime.

It is a super-2 number, since 2×105911897² = 22434659852277218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (105911891) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10463 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (8346072).

Almost surely, 2^105911897 is an apocalyptic number.

It is an amenable number.

105911897 is a deficient number, since it is larger than the sum of its proper divisors (27625255).

105911897 is a wasteful number, since it uses less digits than its factorization.

105911897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28448.

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 105911897 is about 10291.3505916376. The cubic root of 105911897 is about 473.1311938017.

The spelling of 105911897 in words is "one hundred five million, nine hundred eleven thousand, eight hundred ninety-seven".