105195945 has 8 divisors (see below), whose sum is σ = 168313536. Its totient is φ = 56104496.

The previous prime is 105195941. The next prime is 105195971. The reversal of 105195945 is 549591501.

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

It is a cyclic number.

It is not a de Polignac number, because 105195945 - 2² = 105195941 is a prime.

It is a super-2 number, since 2×105195945² = 22132373688886050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105195941) 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, 3506517 + ... + 3506546.

It is an arithmetic number, because the mean of its divisors is an integer number (21039192).

Almost surely, 2^105195945 is an apocalyptic number.

105195945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105195945 is a deficient number, since it is larger than the sum of its proper divisors (63117591).

105195945 is an equidigital number, since it uses as much as digits as its factorization.

105195945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013071.

The product of its (nonzero) digits is 40500, while the sum is 39.

The square root of 105195945 is about 10256.5074464946. The cubic root of 105195945 is about 472.0626787035.

The spelling of 105195945 in words is "one hundred five million, one hundred ninety-five thousand, nine hundred forty-five".