105918073 has 4 divisors (see below), whose sum is σ = 108381328. Its totient is φ = 103454820.

The previous prime is 105918067. The next prime is 105918079. The reversal of 105918073 is 370819501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (105918067) and next prime (105918079).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105918073 is a prime.

It is a super-2 number, since 2×105918073² = 22437276376066658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105918079) 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 3 ways as a sum of consecutive naturals, for example, 1231563 + ... + 1231648.

It is an arithmetic number, because the mean of its divisors is an integer number (27095332).

Almost surely, 2^105918073 is an apocalyptic number.

It is an amenable number.

105918073 is a deficient number, since it is larger than the sum of its proper divisors (2463255).

105918073 is an equidigital number, since it uses as much as digits as its factorization.

105918073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463254.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 105918073 is about 10291.6506450618. The cubic root of 105918073 is about 473.1403901291.

The spelling of 105918073 in words is "one hundred five million, nine hundred eighteen thousand, seventy-three".