105445121 has 8 divisors (see below), whose sum is σ = 106142400. Its totient is φ = 104750800.

The previous prime is 105445097. The next prime is 105445129. The reversal of 105445121 is 121544501.

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 105445121 - 2²⁶ = 38336257 is a prime.

It is a super-2 number, since 2×105445121² = 22237347085409282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105445129) 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, 150071 + ... + 150771.

It is an arithmetic number, because the mean of its divisors is an integer number (13267800).

Almost surely, 2^105445121 is an apocalyptic number.

It is an amenable number.

105445121 is a deficient number, since it is larger than the sum of its proper divisors (697279).

105445121 is an equidigital number, since it uses as much as digits as its factorization.

105445121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 105445121 is about 10268.6474766641. The cubic root of 105445121 is about 472.4351073129.

Adding to 105445121 its reverse (121544501), we get a palindrome (226989622).

The spelling of 105445121 in words is "one hundred five million, four hundred forty-five thousand, one hundred twenty-one".