105645145 has 8 divisors (see below), whose sum is σ = 127183680. Its totient is φ = 84243120.

The previous prime is 105645097. The next prime is 105645167. The reversal of 105645145 is 541546501.

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

It is not a de Polignac number, because 105645145 - 2⁷ = 105645017 is a prime.

It is a super-2 number, since 2×105645145² = 22321793324142050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32415 + ... + 35524.

It is an arithmetic number, because the mean of its divisors is an integer number (15897960).

Almost surely, 2^105645145 is an apocalyptic number.

It is an amenable number.

105645145 is a deficient number, since it is larger than the sum of its proper divisors (21538535).

105645145 is an equidigital number, since it uses as much as digits as its factorization.

105645145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68255.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 105645145 is about 10278.3824116444. The cubic root of 105645145 is about 472.7336470306.

The spelling of 105645145 in words is "one hundred five million, six hundred forty-five thousand, one hundred forty-five".